A nation's industrial development begins with junior engineers.

"Come on, you rarely come here, let Auntie take you to eat!"

Dr. Lan Ying ruffled Jiang Xia's hair and shooed him out of the lab. Then she whispered something to a group of lab technicians.

The experimenters then began to rummage through his body.

Old Wang, with his sharp eyes, subtly nudged Jiangxia, who was still grinning foolishly at achieving a Chinese-speaking environment.

One point for you, one point for me, huh?

The senior disciple from Yunnan and Guizhou actually pulled out a maroon one-cent coin. A new coin? Never seen one before.

Pshaw, now's the time to be thinking about these things!

"Aunt Lanying, Senior Brother Yungui, stop busying yourselves and come see what I brought for you?"

Jiang Xia stood at the door and waved to the somewhat embarrassed crowd, "By the way, everyone wear cotton gloves!"

Upon arriving at the factory grounds, a van was parked in front of the low-rise office building at the entrance.

Needless to say, it was modified from a Jiefang truck.

In Jinan, the Yellow River cards are basically all bought up by the police force, with very little going to the civilian market. Of course, to improve this situation, with strong support from the police force and local authorities, several large production workshops have been built in Jinan this year, ready to go into overdrive!

Returning to the topic of this Jiefang truck, it was the work of Factory 331, whose Director Zhao was extremely thoughtful. Fearing the frozen fish might thaw en route, they simply modified a Jiefang truck to resemble a train car, loading the truck and the truck together into the train carriage.

The truck was also loaded with local specialties, such as canned yellow peaches, wild spring tea, and dried tofu from Youxian County, filling half the truck. The local leader even wrote a thank-you letter, specifically stating that the goods were a gift to the "Jiangxia Engineers." Finally, perhaps finding nothing else to pack, they even crammed in a pile of fossilized bones.

The fossil also came with a prescription, which was said to be written by a famous doctor. It said that this "dragon bone" combined with Angelica dahurica from Chaling would strengthen the body, treat deficiency syndromes, and be very effective!

"keel?"

Okay, Jiang Xia believed it. Given that there's a Luyuanbei in Zhuzhou, where our ancestor who tasted hundreds of herbs slept, and that quite a few dinosaur fossils have indeed been unearthed there.

Therefore, calling this pile of fossils "dragon bones" isn't wrong. With the blessing of the ancient Chinese herbal remedies, Jiang Xia thinks it's pretty cool to gnaw on fossils.

But I'm not kidding!

Despite his impotent rage, Little Dumb Hair couldn't stop Old Wang from moving all that stuff into his little jeep.

"You made a juicer a while ago, did you anticipate someone would send you something like this?"

"This big bone is a bit of a hassle to eat raw, but it tastes good when it's ground into ash."

"Leave it to me, I'm a pro at using the juicer now!" Old Wang hummed an unknown tune, which Jiang Xia found very suspicious...

Ha, Old Wang must be almost thirty by now, a middle-aged man, huh? Hmph!

Okay, let's ignore that for now.

They're busy getting people out of trouble now...

Researcher Xiao Guan, who volunteered to open the train carriage door, was buried under a cascade of frozen yellow croaker...

Why did he open the box and instead of leaving, stand there shouting, "So many fish..."?

The fate of many fish in the ocean is that of fishermen rejoicing; the fate of many fish on land is that of being bruised and battered.

In the cafeteria, everyone was devouring half a fish. Little Dumb Hair said that this was only part of it; there were still two more truckloads to go!

After all, a single train car can crammed in 8 tons of frozen yellow croaker, while the 331 train crammed in three cars. However, quite a few of them were battle-damaged…

Like the one Jiang Xia gnawed on, not only was it headless, but there was also a small bolt stuck in its belly. I wonder if it came from that unfortunate destroyer...

"Hey, what's wrong with your little brain? You actually came up with the idea of ​​using an expansion valve to turn the refrigerant into a low-temperature, low-pressure liquid. The orifice diameter of that expansion valve is hard to control; I bet only your steel rolling mill can make it right now!"

As Jiang Xia explained the principles behind the mobile ice storage, the two PhDs nodded while eating.

"What refrigerant did you use? Ammonia?"

"It's dichlorodifluoromethane. There's a large fertilizer plant under the Ministry of Chemical Industry that's doing trial production. I don't know how they managed it, but the first batch they produced was this stuff. And there was quite a lot of it. They don't know what it's for, so I asked for a few big bottles..."

As he spoke, Jiang Xia used his hand as a pen to write a series of formulas on the table: CCl? + 2HF → CCl?F? + 2HCl.

"Anhydrous hydrogen fluoride (HF)? These idiots must be trying to test the corrosion resistance of the processed pipes..." Teacher Lan Ying touched the formula and shook her head helplessly.

"Those guys in the Chemical Engineering Department are really ambitious. You shouldn't go near them in the future. They might just send the lab physics department to its wits' end..."

Jiang Xia was stunned. No way, his last stop today was the Ministry of Chemical Industry, because the preliminary step of the gas centrifugation method is to convert the ore into uranium hexafluoride.

This substance is a solid at room temperature and pressure, but it will sublimate into a gas when heated to 56 degrees Celsius.

Its corrosiveness is so strong that even glass and ceramics cannot withstand its brutality.

Jiang Xia was thinking of going to the Ministry of Chemical Industry to see if they had managed to get polytetrafluoroethylene (PTFE) out of the centrifuge's sealed pipes.

Uh, it should be fine, right? Just don't go into their lab, or maybe we can have Old Wang make the trip?

After all, their grudges were much deeper than his own! Thinking of this, Jiang Xia glanced at Old Wang with ill intent. Sacrifices and such seemed quite useful?

Huh? What's Old Wang doing? And Senior Brother Yungui next to him is watching with great interest?

"I thought you were using the boiler to cool things down..." Teacher Peishu interjected while enjoying the fish.

"Cough cough cough..." Jiang Xia raised his head and coughed a few times. "Stopping the boiler to cool it down? Teacher Peishu, how do you do this?"

"Tsk, silly boy, absorption refrigerator, those foreigners have been using it for years, and you, a great man, still don't know? If we used steam from a locomotive, we could save a lot of trouble."

Jiang Xia burst into tears, truly unaware of what "burning fire" meant.

Wait, ammonia?

hiss……

"Teacher Peishu, is it that the ammonia-water mixture is heated by a stove fire, and the heat is absorbed when the ammonia vaporizes, thereby cooling the temperature inside the freezer?"

“Yes, but this thing still poses a significant safety hazard…” Teacher Pei Shu continued, “Back in the Lobster Country, I often heard about incidents of people being injured when the compression tanks exploded.”

"But it doesn't need a compressor! If it doesn't need a compressor, it doesn't need electricity!" Jiang Xia slapped his forehead. He had been racking his brains trying to add more generators to the train, but the solution just popped up like this?

It's not entirely Jiang Xia's fault, really. After all, few people in later generations of China knew that refrigerators could be powered by fire. The strange fusion of ice and fire, requiring no additional mechanical parts, is perhaps the unique charm of chemistry!

Jiang Xia was instantly inspired, and the burner, heater, gas-liquid separator, condenser, evaporator and absorber were written in one go.

It couldn't be simpler. With friction welding machines as a foundation, mass production of condensers and evaporators is no problem at all. As for the absorber, isn't it just a small gas cylinder?

A 500-ton hydraulic free forging system is sufficient to meet its usage requirements.

This structure is so simple; besides the sealing pipes, you don't need anything else! As for the large size due to meeting certain freezing requirements...

Does the old man on the train care?

Could this thing even be used by the soldiers guarding the islands and reefs? The other day, a comrade from the Navy brought over some tapes; he was drunk and started crying uncontrollably when he talked about his comrades guarding the reefs…

It's all set, everything's all set!

Uncle Wang, how many refrigerated trains do you want? So that comrades at the foot of the Tianshan Mountains or along the border can enjoy seafood to their heart's content!

Anyway, Comrade Jin Guang still needs to continue testing the performance indicators of the "Sea Flower". Why not just park the target ship in an area rich in fish? It won't interfere with either of them!

Sure enough, we can't just stay cooped up in the factory. It's the right thing to do to go out, take a walk, and have more exchanges with these veterans!