A nation's industrial development begins with junior engineers.

It was early morning, but the sun was nowhere to be seen.

The sky was filled with flying yellow sand, creating a feeling of blotting out the sun.

An empty factory building; yesterday's transport truck was parked inside.

Last night, after spending most of the day analyzing the curves, and seeing the yellow sand blocking the entrance, Jiang Xia simply stayed in the factory building. Fortunately, the workers who were handling the transport habitually emptied the train cars, moving all the odds and ends into the transfer vehicle, even sweeping away the coal ash.

Using a coal stove and pressure cooker, Jiang Xia cooked up the remaining Big Brother brand luncheon meat into a big stew. Anyway, the soldiers who ate it all said it was good, just a bit too salty.

Jiang Xia crawled out from under the quilt in the car, picked up the water bottle that the dog had brought him, and gulped down a full glass of water.

After drinking it, a bitter taste slowly crept up from my stomach to my throat.

It felt like eating a mouthful of salt first, and then gnawing on a piece of iron.

The dog mysteriously took out a section of plant root: "Chew it, and it won't be bitter anymore."

Jiang Xia took it without even looking at it and stuffed it into his mouth: "Brother Gou, did the higher-ups say where the machine tool should be installed? If there are no regulations, I think this factory building is fine."

The dog grinned, which was quite impressive. The high-grade cement floor and the specially reinforced factory walls were the original storage location for P-2 prototype bombs.

However, I still have to report to my superiors: "I've asked around."

Unfortunately, the walkie-talkie couldn't get through due to interference from the yellow sand.

Tugou carried the data records that Jiangxia had prepared for the transfer vehicle.

The thick book not only recorded the relevant data from the sensors, but also included some improvement plans written by Jiang Xia.

The stray dog ​​tightened its clothes.

"I'm going to get a report. You guys stay here and don't wander off. Two members of the water delivery team were blown away by the wind the other day..."

"Have you found him?"

The dog turned its back and said in a slightly nasal voice, "Yeah, I'm staying in the Dongfeng dormitory in the northeast corner."

As he spoke, he crouched down and squeezed through a small door, then half-squatted and took a few steps forward with a somewhat adorable duck-like gait.

Suddenly remembering something, he braved the wind and sand and retreated.

"Hey kid, you came from out of town. Didn't you bring anything with you?"

Jiang Xia patted his bag and pulled out a pair of ripped trousers with several holes: "You all know what's in this bag, right? This is all I have with me. You want it? I'll give it to you. If not, I also have a screwdriver..."

With a dark expression, the stray dog ​​carefully pulled a white cardboard box from his bag with delicate, orchid-like fingers.

"So stupid and clueless!"

"Who in their right mind would wear shorts!"

After saying that, he plunged headfirst into the sandstorm.

"Tsk, don't try to guess what's on a veteran's mind." Jiang Xia stuffed the trousers into his bag and asked the communications soldier standing next to him, "You guys really don't wear these things?"

"I only get one set of military uniform a year, it's worn out long ago." The communications officer was also a young man, and perhaps because he hadn't seen outsiders for a long time, he inevitably talked a bit more.

"Furthermore, I advise you not to wear this in the sand dunes."

"what?"

"It's better not to wear them. They're breathable, and if there's sand, you can just shake it off. Wearing them is more troublesome because the sand won't come off, and they'll rub against your skin."

Meanwhile, in a place quite far from Xiao Jiang.

Underground laboratory.

"Report from all departments," the small loudspeaker in the corner announced.

"Ready!"

"The 41st simulation experiment begins. Prepare to increase pressure!"

Unexplained machine noises echoed inside the cave.

"Pressure application begins, estimated time seven minutes!"

One minute later, everything was normal.

Two minutes, normal.

"Report: There is an abnormality in catheter number 2; gas is observed leaking out!"

"continue!"

"Report, Numbers 1 and 3 are starting to overflow!"

"Continue, but be sure to take safety precautions!"

The middle-aged man at the head of the group stared intently at the stopwatch in his hand; time was his only concern. If they could hold out for two minutes, the subsequent experiments could at least be attempted.

"Report! An anomaly has occurred in the key promotion area!"

"Report! An anomaly has occurred in area 4. The connecting pipe has broken, and the damage is worsening!"

"Report! The liquid oxygen tank has ruptured, and liquid oxygen has spilled!"

The man stopped the stopwatch, glanced at the dial, and saw that less than three minutes had passed!

"Sound the alarm! Evacuate! Keep increasing the pressure! I want to see the limit!"

As he spoke, the middle-aged man stepped forward, pulled the operator behind him, and grabbed the control lever himself.

"Team leader!"

"Excuting an order!"

As soon as he finished speaking, the mouth of the liquid oxygen cylinder popped up with a "pop," just like the cap of a radiator filled with hot water, and floated up lightly.

Everyone stared intently at the bottle opening, their gazes following it as it slowly moved upwards.

"Uh... team leader?"

"Shut down! Shut down! Please wait for ten minutes!"

The man waved his hand dejectedly, "Go in and check the damage results in ten minutes."

Holding the notebook in his hand, the man went to a small room around the corner.

"Team Leader Jiang! How's it going? Have the test results come out yet?"

Secretary Xie from the outlying factory stood up and looked over with a nervous expression.

"Hmm... the lasting time is much better than the previous batches, but it's still not enough. The intended range is 550 kilometers, and the 1059 should take at least 7 minutes to fly... but this batch of parts didn't even last three minutes!"

"What? It still doesn't work! This is already the best the experienced workers who came to help have done!"

"Eh~~"

Smoke drifted into the small room, like the sorrows of the two people, lingering there for a long time.

"Team leader, ten minutes are up. Liquid oxygen has been visually discharged, and there are no ignition points in the experimental area. Personnel are requesting entry!"

"Don't panic! Ventilate the steel door for another three minutes, and then everyone entering should put on protective suits!"

"Safety first, understand?"

"Yes!"

Comrade Jiang carefully stubbed out his cigarette, and only after watching that Secretary Xie's cigarette was completely extinguished did he get up and open the door. "I'll go in and take a look. I'll go to the main conference room for a meeting later. The teachers are also discussing the final data; let's see if there are any changes!"

After Comrade Jiang put on his protective suit, he looked at the connecting pipe that had burst open in the middle and sighed deeply.

He reached out and removed the rickety pipes, then dragged the large steel cylinder toward the conference room.

"Come and take a look, let's analyze the reasons. The quality this time is much better than the previous times. There is no damage at the joints. It just broke in the middle. Is it because of the material?"

Several people from the outer factory gathered around and carefully inspected the pipes.

"Dingling bell~~"

The phone rang.

Old Jiang carefully made his way across the conference room tables, which were filled with hand-cranked calculators; he couldn't afford to damage them.

"Hello, this is Jiang Chuntian from the R&D team."

"Teacher! Yes, the experiment has been done. The damage time was 2 minutes and 21.33 seconds. The colleagues at the external factory are investigating the cause!"

"What? The relevant data needs to be improved? Secretary Xie said that this time the parts are already of a high standard of craftsmanship!"

"Teacher, I think we should still..."

"Yes! Promise to complete the mission!"

After hanging up the phone, Lao Jiang rubbed his temples and looked at his deputy: "Lao Huang, the teacher wants a new set of drawings, with the accuracy increased by 0.2 points. He said it's Dean Qian's idea. You handle the four types of corrugated pipes, and I'll handle the gas cylinders."

Old Huang leaned over the table and patted the hand-cranked calculator beside him: "It's smoking. Get me a new one!"

"Go and try to figure it out yourself with the abacus. If you can't, Dean Qian will give you a lecture!"

Old Jiang opened his drawer, took out paper and pen, and paused for a moment when he looked at the newspaper on the top shelf.

I gently touched it.

My finger hovered over the portraits of each of my loved ones.

Hehe, my child has grown up.