The charcoal slid on the board, making a pleasant rustling sound. With the movement of Chen Zheng's pen tip, a neat and clean design leaps onto the paper...... Uh-huh.

The sunlight outside the window shone obliquely on Chen Zheng's serious face, and the light and shadow outlined the outline of his facial features more clearly.

"What are you doing?" A female voice rang out.

“…… Design ......" Chen Zheng replied casually without raising his head.

"Is the zero crystal powder I want ready?" The girl walked up to Chen Zheng, casually put a basin of snot-like things next to the table, and looked Chen Zheng's work up and down with interest.

"What is this?" The girl pinned her long golden hair behind her ear and asked curiously.

"The cooling system of the track ......" After Chen Zheng finished drawing the last stroke, he put the charcoal pencil next to him, wiped his hands with the hay next to him, and finally shifted his gaze from the drawing to the girl.

“…… What happened to their research? Chen Zheng looked up and asked.

"No results." The girl shook her head slightly, her long golden hair turning like a waterfall with his movements, "Don't get your hopes up, the Zero Energy Furnace is not something that ordinary people can study clearly, even in the heyday of the Blue Gold Empire, there are no more than a few people who can participate in the research and improvement of the Zero Energy Furnace." ”

"Well, I didn't have much hope." Chen Zheng smiled, "I just want to absorb some advanced design concepts and use them in our own functional system." ”

"Eat something first, then bring zero crystal powder and come with me, I'm going to add fuel to the zero energy furnace, you can also take a look." The girl said.

"Hmm." Chen Zheng said as he took the bowl brought by the girl......

“…… Are you sure this thing can be eaten? Looking at the "snot" in the bowl, Chen Zheng hesitated.

"What? Haven't eaten fermented synthetic foods? The girl sneered, "In this regard, you are as virtuous as that guy Lan Yin." ”

"No, I mean...... Never mind. Chen Zheng sighed.

This snot-like food is a semi-finished product that has just been produced by the Model C. Originally, it still needed to be compressed into blocks, but the supporting mold and hot press were destroyed in the battle, and Chen Zheng and they were now busy preparing for the war, and they really didn't have time to make another set, so they could only replace it with this semi-finished paste.

As a citizen of the Great Foodie Empire, this kind of thing is really not easy to eat, especially after knowing that it is made of leaves, bark, and stinky seaweed, it is very difficult to pass this level in my heart.

"Ahh Holding back the discomfort in his heart, he dug a spoonful and put it in his mouth.

"Huh?" Chen Zheng was stunned.

It's better than expected, but overall it's just not too bad to eat.

If I had to describe the taste, it would probably be rice porridge with a little sugar, a little salt, a lot of starch, a little paper and seaweed – that's right, paper!

It's a little sweet, a little bit of wood fiber and seaweed, but it's not obvious, it should be mixed with a little unsaccharified cellulose.

"It's hard to eat?"

"Hmm." Chen Zheng nodded.

If he was allowed to eat this stuff in one fell swoop, he would rather starve to death.

“…… Little young master......" The girl smiled and shook her head.

After eating a painful meal, Chen Zheng took the blueprints to the big tent not far from the wooden house.

Here, the spectacled five-man group is nervously busy around a cylindrical object.

"Isn't the energy system done yet?" Chen Zheng asked.

"Uh...... To this day we still haven't figured out how it works, and we can't even use the energy it outputs. "The man with glasses told the truth.

"Not electricity?" Chen Zheng was not surprised that he could not use the zero-energy furnace, but to his surprise, the energy it output was not electricity!

"It's a strange kind of energy, both mild and violent, that can be slowly pumped out over a long period of time, or it can consume all the zero crystals stored in the entire Zero Energy Furnace in an instant! The person who researched this zero-energy furnace must be a super genius! ”

The man with glasses admired the designer he had never met.

"And what is he exporting? Light? Hot? Chen Zheng frowned.

“…… I do not know...... But certainly not a conventional energy source. The man with glasses was embarrassed and spread his hands.

"That'...... Put the energy supply device first, you take a look at this design first. Chen Zheng handed him the plank.

"A good idea, burying a thermoelectric converter in orbit can convert the thermal energy generated during launch into electrical energy, which not only cools the orbit but also increases energy...... But adults...... IMHO, now we can't build thermoelectric converters. ”

"The one you look at is the advanced version, and if you look down, there's a water-cooled simplified version below." Chen Zheng reminded.

“…… The water sleeve and heat pipe are double-cooled, and even the steam outlet to release pressure has been thought of, and the steam sprayed can be used to reduce recoil...... Near-perfect design. ”

The man with glasses pushed his eyes on the bridge of his nose, nodded at Chen Zheng in admiration, and then couldn't wait to input the design into the instrument and start the calculation for 5 minutes.

Soon, the results came in.

"According to your design, the maximum temperature of the new orbit will not exceed 1,000 degrees when firing copper projectiles, and 800 degrees when firing aluminum butting armor-piercing projectiles."

"800 degrees......" Chen Zheng nodded.

If the actual data can be consistent with the paper data, then Chen Zheng's electromagnetic track version 2.0 can be close to practical. And the biggest problem that bothered him now was the energy source.

Now it seems that the zero-energy furnace used on BT-7274 cannot be counted on for the time being.

As a result, the energy supply system has to be bulky, bulky, and difficult to recharge quickly.

"Looks like we're going to have to make a one-shot version." Without thinking about it for too long, Chen Zheng made a decision.

Even if each electromagnetic railgun can only threaten the butcher piloting the Red Lotus once, then it is better than nothing. At least it will more or less increase the girl's chances of victory.

At present, Chen Zheng and the others do not have many means to threaten the red robot, and only the "virtual light cannon" system carried on the BT-7274 is sure to kill it.

However, every time the virtual light cannon is fired, it consumes three-quarters of the energy of a zero-energy furnace, and unfortunately, the other three zero-energy furnaces on BT's body were thrown out by the girl as bombs, but the person who blew up the black sail could not navigate for half a year, but this also left the girl with only one chance to kill the combination of Red Lotus and the butcher.

Considering Red Lotus's agility, the margin for error was unacceptably low if there was only one chance, and Chen Zheng couldn't pin all his hopes on the girl not being missed.

"But my lord, if you only make a single-shot version, we won't be able to keep up with your 100-shot plan to complete your plan of 100 shots." The man with glasses poured a basin of cold water.