In this era, to be able to sit on the green car, is already a kind of luck, in the Spring Festival period, because there are not enough green cars, many stuffy tank cars will undertake the task of passenger transport, this kind of car does not have any equipment for people to ride, no seats, no toilets, no heating, in order to allow the people inside to breathe some fresh air, and even when the train starts, the door has to open a crack.

Otherwise, people can suffocate in the summer, and the winter is also very uncomfortable, the cold wind is blowing, it is simply purgatory-like torture, but as long as you can return home, all the difficulties are bearable, especially now, Qin Feng and Qin Xue are not riding an ordinary stuffy tanker, but a military train.

From Chengdu to Shaanxi, there are military trains constantly moving, now, there is no need to pay attention to any comfort problems, it is good to have a car, even if it is Qin Feng, it is not easy to buy a ticket, taking the free military train, for Qin Feng, is a good choice.

What's even better is that when the military train returned, the carriage happened to be empty, so the two of them could only wait in this empty carriage, each wrapped in a military coat.

The wheels kept colliding at the junction of the rails, making a clanging sound, and on the train, Qin Xue didn't waste time, turned on her flashlight, and looked at a book.

Programmable logic controllers.

When he saw the title of the book, Qin Feng was stunned, of course Qin Feng knew that his sister was studying electronic engineering, but this major should still be the most ordinary basic theory, in Qin Feng's consciousness, she should learn the simplest analog circuits, digital circuits, these knowledge, right?

This kind of book is so specialized, it should be at least a sophomore, or even a junior, and it requires programming knowledge, as well as CPU and other professional knowledge.

"Have you learned so much?" Qin Feng couldn't help but ask.

"No, this is a sophomore, but I have nothing to do during the winter vacation anyway, I heard that these courses are very important, so I will study on my own in advance."

Qin Xue went home, she didn't bring anything else, almost all of them were books, although she went to college, she still didn't change this habit, no matter where she went, she always took books with her, and she studied tirelessly.

Qin Feng nodded: "We went to the test flight institute, they are all experts, if there is anything that you can't do, you can ask them." ”

The stabilizer that the test flight institute is working on now, I'm afraid there will be a lot of PLC in it, right? Qin Feng thought in his heart, this kind of circuit is the foundation of the future, especially the new generation of fighter jets, which have begun to use bus technology, and they need a solid foundation in digital circuits.

Qin Xue watched all the way, when it was cold, she rubbed her hands from time to time, and when she was hungry, she ate dry food that was already frozen, and just like that, the two of them took the train for a whole day and finally wandered to the test flight yard.

"You don't know how to find a better train, see how the snow will freeze." When she entered the test flight yard and saw Gu Tingting for the first time, Gu Tingting couldn't help complaining, Qin Xue's face had been frozen red all the way, no matter how warm her body was, she had been frozen all the way.

Qin Feng was also very embarrassed: "No way, I really can't find a ticket to come back, let's go home with a ticket, we have to find a way, Tingting, is it easy to buy a ticket to Shenyang?" ”

Gu Tingting shook her head: "What are you going to Shenyang, this ice and snow, are you planning to make Xiaohutou sick?" Let's all go back to your house, it happens to be lively along the way, and I have asked someone to buy this ticket. ”

Qin Feng suddenly felt a burst of excitement in his heart, the people of this era are actually very strong, the little tiger head wore a cotton coat, only his head was exposed, his two eyes were purring, and he finally recognized Qin Feng, and immediately ran over and hugged Qin Feng.

"Daddy, Daddy!" Xiaohutou shouted, and Xiaoxue pouted on the side: "Sure enough, there is only my father in my eyes, not my aunt." ”

As soon as Qin Xue said this, the little tiger head actually knew something, and stretched out his hand to Qin Xue, so Qin Xue smiled and hugged the little tiger head.

In the past six months, the little tiger's head has grown taller again, the tiger is vigorous, Qin Feng is a little distressed when he sees it, he can't be too tall, he can't fly a fighter jet if he is too tall, he can only fly a transport plane.

Homecoming!

On the crowded train, the family is laughing and laughing, how many years? Since getting married, this is the first time I've gone home for the New Year, right?

Qin Feng thought of getting off the train and transferring to the car, and after the car got off, he had to walk more than ten kilometers, so he felt a little sorry for Gu Tingting, and followed him home, suffering hardship, the conditions at home were not good, Gu Tingting was willing to go home with herself, instead of going to Shenyang, she was too wronged.

Thinking of this, Qin Feng couldn't help but look at Gu Tingting, Gu Tingting and Qin Xue had been teasing Xiaohuzi, without the loneliness of the journey, and the crowded crowd on the train was all happily embarking on the road home.

"Tingting, it's been a hard work." Qin Feng couldn't help but say to Gu Tingting.

got off the train and took the bus, and now, seeing that there are still mountain roads left, Qin Feng is extremely guilty, this remaining road is not easy to walk.

The little tiger head had already ridden to Qin Feng's neck, and was looking around, full of curiosity about all the things around him, the whistling north wind was blowing, and the cold wind carried the breath of home.

Qin Xue not only carried her schoolbag, but also carried a bag brought by Gu Tingting, which was mainly stuffed with little tiger heads, small toys, bedding and the like.

Gu Tingting was also carrying some things in her hand, and when she returned to her hometown for the first time, she had to bring some delicious food.

Holding these things and walking such a long mountain road is definitely a physical task.

If you have money or not, go home for the New Year, now this song is not popular, but it is already everyone's mind, the New Year, and the family is waiting for you.

Qin Feng couldn't wait to fly back to his home all of a sudden, but, thinking about this road, he felt very embarrassed, he and his sister were easy to say, but Tingting, where could he go so far!

Before getting in the car, it was useless to say anything, Tingting still had to bring so many things.

Just when Qin Feng was still worried, there was a sudden sound in the distance, and when he looked at the sound, he could see a walk-behind tractor, coming from the mountain road in front, and the tractor emitted puffs of black smoke and dust.

Qin Feng looked over with his pilot's eyesight, and immediately knew who the person who was driving the tractor was, it was actually his father!