The driving wheels designed by Ang Lee can accommodate up to six people in each group at the same time, and after being designed into five groups, the maximum number of drivers can be as high as 30 people. Pen "Fun" Pavilion www.biquge.info

Although the driving force is still a little small, the main structure of the rear carriage is made of wood, which is not too heavy, and the resistance is relatively small when traveling on the rails, so it is still guaranteed to maintain the speed of the carriage.

And in order to maintain manpower, there is a distance between each two groups of drive wheel mechanisms, and replacement manpower can be placed, so that two groups of people can take turns to drive, so as to ensure that the front and carriage of the locomotive continue to run forward.

When the vehicle starts, the required force is the largest, in order to reduce the pressure at the time of starting, the connection of the five carriages has been slightly improved, before starting, the pressure hook treatment should be carried out, so that all the carriages are as close as possible, in this way, when starting first, only need to pull the first carriage, and utilize the inertia generated by the movement of the first carriage, drive the second carriage forward, and so on, all carriages are driven up more easily.

The technology of pressing hook and stretching hook is very skillful in later generations, and it is a necessary technology for trains, and with the current technology accumulation of Datang, of course, it is impossible to be so perfect, but fortunately, Li An does not pursue speed too much, and most of the quality of the train is made of wood, which is much lighter than the carriages of later generations, so the difficulty of technology is naturally reduced accordingly.

Of course, because the interior of all carriages is connected to each other, personnel can come and go with each other internally, therefore, the hook technology should also take into account the safety of internal passengers, the hook distance can not be too long, so as not to cause injury to passengers walking between the two carriages, of course, but also to ensure the safety of the connection of the room, and this problem, Li An has studied very maturely, can definitely ensure safety.

The craftsmen assigned by the imperial court to Ang Lee to work as supervisors and workers have already gone to the construction site of the R&D center on time to report to Ang Lee.

And Ang Lee can't waste talents, immediately let them join in the work of manufacturing five carriages and five drive wheel devices, for these skilled talents, just give them drawings, let them make products according to the drawings, don't need to bother too much at all.

As the weather gets warmer and warmer after the spring ploughing, the craftsmen are more and more enthusiastic about their work, and Li Ang has to run back and forth between the railroad tracks and the R&D center every day, and in addition, he has to guide the craftsmen to build five carriages and five wheeled locomotives in the processing plant, and the leisure time is becoming less and less.

But even so, Ang Lee was still able to find time to enjoy life, for example, Ang Lee squeezed out some time and energy to build a sun room near the mansion and the courtyard, with a few rocking chairs and soft beds in them.

Especially the sun room near the courtyard, the role is the greatest, whenever Li Ang is tired of guiding work, he will lie in it while basking in the sun and sleeping, which feels like a big cool word.

Spring is a season that makes people particularly sleepy, if it weren't for the fact that he could spare a little time to make up for sleep in the sun room every day, Li An felt that his body would definitely not be able to hold on, after all, after returning to the mansion at night, he would still pamper Yan Ruyu, tell Yan Ruyu about soap operas, and toss until late every day to fall asleep.

"How long has Li Shilang been asleep?"

Li Yu looked at Wang Ba, who was guarding outside the sun room, and asked.

"Back to King Guangping, Li Shilang has been asleep for an hour."

Wang Ba replied truthfully.

"After lunch, I actually slept for so long, Li Shilang can really sleep."

Li Yu seemed to be a little dissatisfied, after all, he came to find Li An, but Li An was sleeping, which made him very unhappy.

However, he didn't dare to offend Li An, although he was the emperor's grandson and Li Longji's own grandson, he knew very well that in the eyes of his emperor's grandfather, Li An's weight was much greater than him, and Li Li thought so even more.

"King Guangping, where is the incense that Li Shilang is sleeping? Let's wait until he wakes up! ”

Li Li reached out and tugged at Li Yu's sleeve and walked to the side.

Li Yu had no choice but to hang out with Li Li, and ordered the guards to go to the vegetable greenhouse and pick a few cucumbers.

These guards followed Li Yu all day long, and they were already very familiar with the vegetable greenhouse, and even which greenhouse had the most cucumbers and the most tender, they all knew, so they quickly completed the task and picked the best cucumbers and handed them to Li Yu and Li Li.

While eating cucumbers and wandering around, Li Yu's mood suddenly improved a lot, and his irritability gradually calmed down, after all, he ate the cucumbers of Li An's family, but after eating a cucumber, Li Yu was a little irritable, so he ate another one, however, people's stomachs are limited, besides, not long after lunch, after three or five cucumbers were eaten, Li Yu could no longer eat, and of course his mood became not very good.

"You, come here, your Li Shilang, do you have to sleep for so long every afternoon?"

Li Yu scolded Wang Ba and asked sharply.

"Back to King Guangping, Li Shilang's sleeping time is not very fixed, the least time is only half an hour, and the most time, he sleeps from the afternoon until the sun sets."

Wang Ba replied truthfully again.

"What, sleep until the sun goes down at most?"

Li Yu was stunned for a while, if Li An also slept until the sun set today, then wouldn't they have waited for an afternoon.

"The ministers all said that Li Shilang inspected the two construction sites back and forth every day, which was quite hard, but they didn't know that Li Shilang had to sleep here for so long every afternoon?"

Li Yu said sourly.

"King Guangping, Li Shilang is too tired, so he needs more sleep."

Li Li explained softly that although he was also waiting for Li An, because he was beheaded by Li Longji as the prince's biological father since he was a child, his character was relatively weak, and he was not in a hurry to do anything.

"I'm so tired, Xiao Wang doesn't think so! Although Li Shilang inspects the two construction sites every day, he always rides on a horse to take a look, and he doesn't have to work by himself, so how can he be tired? ”

Li Yu obviously didn't believe in this explanation, he had seen Li An inspect the construction site with his own eyes, that is, he gave guidance to several officials of the Ministry of Industry, and then rode around and left, for Li An, who was strong in martial arts and young, it was nothing at all, how could he feel tired?

"Could it be that I slept too late to study things?"

Li Yu assumed a sentence and looked at Wang Ba.

Wang Ba hurriedly responded: "Li Shilang does sleep late, it seems that he often falls asleep in the middle of the night, but it seems that there is another reason. ”

After speaking, Wang Ba covered his mouth, he couldn't hold back for a while, and talked nonsense.

"Another reason? What's with? ”

Li Yu hurriedly asked.

"Li Shilang is newly married, of course he will be busy, so ......"

Wang Ba reminded in a whisper, and the last look in his eyes was obviously what you understood.

"Hahaha! This is really embarrassing for Li Shilang, hard, too hard. ”

Li Yu smiled knowingly, his mood instantly improved a lot, and looked at Li Yu beside him: "Shiro, how many chairs are there inside?" Let's go in and sleep with Li Shilang! ”

"King Guangping, I'm not sleepy!"

Li Li looked confused.

"Then you can walk around here alone! Xiao Wang also had a hard time last night! Ha ha! ”

Li Yu smiled knowingly, quietly walked into the sun room, lay down on the chair next to Li An, and followed Li An's example, closing his eyes and enjoying it.

"Since you're all working hard, then I'll work hard too!"

Li Yu was also tired of walking, so he followed in and lay down next to Li Yu.

The ventilation hole of the sun room is very small, and after the sunlight goes in, the heat also goes in, but the heat is not easy to dissipate quickly, so the sun room is very warm, the temperature is much higher than the outside, and the warmth is very comfortable.

Half an hour later, Li An, who had a sweet dream, slowly woke up and saw Li Yu and Li Li beside him.

"Wang Ba, let me in."

"Ah Lang, what's the matter?"

Wang Ba cautiously walked into the sun room.

"When did the two of them come in?"

Ang Lee asked.

"It's been about half an hour."

"Why didn't you wake me up when they came?"

Ang Lee asked accusatoryly.

"Ah Lang, they saw that you were tired and said to let you rest a little longer."

Wang Ba replied cautiously.

Li An tilted his neck back, lazy, and said, "Wang Ba, go pick a few cucumbers, I'm thirsty." ”

"Ah Lang, there are exactly a few here."

Wang Ba hurriedly handed over a few cucumbers in the sun room.

"Hey, when did you pick it?"

Li Anhu asked suspiciously.

"Ah Lang, this is what King Guangping asked the guards to pick up in the greenhouse, and they picked more than a dozen?"

Wang Ba replied truthfully.

"Dozen? Why are there only three left? ”

"Ah...... Oh! The rest was eaten by the king of Guangping and the fourth prince, and the last one was still outside. ”

Wang Ba was stunned for a moment and replied truthfully.

"The two of them ate so many cucumbers from me in a while, they can really eat it, why didn't they die."

Li An reprimanded angrily, looked at Wang Ba, and said softly: "Cut this cucumber into round slices." ”

"Ah Lang, what is it for?"

"Cover your face, hey, why are you asking so much, hurry up and work."

Li An reprimanded, slowly lay down, and stuffed the cucumbers in his left and right hands into his mouth in turn.

After being in the sun room for so long, he felt dry and very uncomfortable, and the two cucumbers went down to his stomach, and he suddenly felt much more comfortable.

"Ah Lang, the cucumber slices are cut."

Wang Ba handed the cut cucumber slices to Ang Lee's hand.

"Alright, you go out!"

Li An asked Wang Ba to leave, and pasted the freshly cut round cucumber flakes on his face, the two largest ones were placed on his eyes, and some were placed on his forehead and cheeks, including his chin, which were wet and cool, and felt very comfortable.

"What time is it?"

Li Yu and Li Yu woke up almost at the same time.

"It's almost evening, and you can really sleep."

"Wow...... Li Shilang, are you okay! What's on your face? ”

Li Yu and Li Li were both startled when they saw the cucumber slices on Li An's face.

"It's cucumber slices, don't you eat cucumbers every day? Why haven't you even seen cucumber slices? ”

Li An opened his mouth to say sarcastically, and turned his head slightly to look at the two of them with shocked faces.

"Li Shilang, you are good, why did you stick the cucumber slices on your face?"

Li Yu asked curiously.

"Cucumber slices are rich in water, as well as a variety of rare nutrients, cucumber slices on the face, can play a good beauty role, delay the aging of facial skin, reduce wrinkles, make the skin more supple, in short, there are too many benefits, for a while and a half to say clearly."

Li An said a lot of benefits, but Li Yu and Li Li were confused, and the two of them had no concept of beauty in their minds at all, of course they would feel strange, and Ang Lee's appearance was indeed very scary.

However, the two of them understood a sentence and made their skin more supple, but this is something that only little girls will pursue, how could Ang Lee, as a rough man, have such a pursuit? It feels very strange.

"Li Shilang, you shouldn't be evil!"

Li Yu asked with concern.

"Evil, how can it be? I'm fine, there's some cucumber slices here, you guys try it on your face too. ”

"Shiro, Li Shilang is not lightly ill, let's pass on the imperial doctor!"

Li Yu and Li Li looked at each other, no matter how they understood it, they both felt that Li An's current appearance was very incomprehensible, and it was a manifestation of abnormal brains.

"Forget it, it's not enough, do you have something to do with me?"

Li An took off the cucumber slices on his face and asked softly, he thought about it carefully, he really couldn't let Li Yu and Li Li know the benefits of applying cucumbers to their faces, otherwise, the cucumbers in the five hundred acres of vegetable greenhouses would suffer.

"Li Shilang, it's been half a month, have you invented something interesting again, we just want to come here and see it."

Li Yu asked curiously, Li An invented things very frequently, and they believed that Li An must have invented a lot of things in the past half a month.

"Well, I've been busy for the past half a month, and I've invented a lot of good things, but they're not very fun, and they're not things for people to play with."

Ang Lee replied.

"As long as it's new, we want to see it."

Since everyone is here, it is not good to go back empty-handed, and you have to see something new, so that it is worth the trip.

"Well, I'll take you to see the sun cooker! This thing was only made in the last few days, and it is also a very magical thing, you may be interested, and it is very valuable to promote in the area of the capital. ”

Li An thought for a long time and felt that only the sun cooker could get his hands on it.

Li Yu and Li Li usually have homework to learn, and occasionally come to follow Li An, just to gain knowledge, I heard that the sun cooker is a very magical thing, and immediately became interested, and followed Li An in a hurry, and walked towards the processing plant.

"See! This big guy is a sun cooker, isn't it very magnificent. ”

Ang Lee proudly introduced.

"Li Shilang, what is this sun cooker for, it looks so strange."

Li Yu and Li Li looked around the lid of the cauldron for a long time, but they couldn't figure out what this guy was used for. (To be continued.) )