"I have something to do in a while, I have to go out first, if you have any questions, you can just talk to them. Director Liu pointed to the office next door and said, then went out with a bag in his pocket.

At this time, Li Shan was the only one left in the office, he sat on the chair, stretched his waist comfortably, and looked at the computer on the desk again, the plastic film on the display screen and keyboard had not been removed, and it was obviously new.

The chair that Li Shan sat on was the kind of multi-functional chair commonly used in general office buildings, with many wrenches for adjustment, Li Shan touched this curiously, moved that, and rotated the chair in situ, and then gently put his feet on the ground, and the universal wheels on the chair were very flexible, and he slid to the wide window.

This is where he will work in the future, it looks good, Li Shan is very satisfied with the working environment here, no wonder people like to sit in the office, it turns out to be really good.

Li Shan didn't stay in the office for long, he began to go through the business trip procedures non-stop, because he had also gone through similar procedures before, and the troops were also in a hurry, so the procedures were also green light, and they were completed quickly.

Due to some problems in the flight training of the "Mountain Eagle" aircraft, according to the analysis and judgment of the technical personnel of the on-site service, it was a component called the pressure ratio regulator that had a problem and needed to be replaced. Therefore, Li Shan also had to take the attachments with him on this business trip.

Look at this box with accessories like the size of a medium suitcase, Li Shan originally planned to handle a consignment, and finally inquired, Not to mention the trouble of handling procedures, the key is this attachment worth hundreds of thousands, in case there is any problem in transportation, who to find when the time comes, not to mention that it is lost, it is just a bump, it is not a problem.

Therefore, for the sake of insurance, Li Shan went on the road alone with the attachment on his back.

Shanghai is a provincial-level administrative region, a municipality directly under the central government, a national central city, a megacity, and an international economic, financial, trade, shipping, and scientific and technological innovation center approved by the state.

It is located in the eastern part of China, the estuary of the Yangtze River, the East China Sea in the east, and the two provinces of Gusu and Jiangsu and Zhejiang in the north and west, and is a national logistics hub.

The humanities of Shanghai listed on the stock market are also very distinctive, it is based on the traditional culture of Jiangnan in China (Wuyue culture), and the modern industrial civilization that has a far-reaching impact on it after the opening of the port originates from Europe and the United States, and gradually forms a unique cultural phenomenon.

It is precisely in the "inclusiveness and inclusiveness" that the "World Architecture Expo" has created the coexistence of Chinese and Western, Chinese and foreign styles, art blending, and unique style.

When Li Shan came to this famous city, he was immediately attracted by this bustling city, but he didn't care about sightseeing, and went straight to the airport as soon as he got off the train.

Generally speaking, the air force airfield should be deployed far away from the big city, but this air force unit is stationed in the vicinity of Shanghai, needless to say that this force is used to defend the city. This flying team belongs to the naval aviation group of the East China Sea Fleet, and when he sees those air force pilots who are different from the air force pilots he usually sees, and also different from the navy soldiers dressed by the army, Li Shan, who grew up in the interior, feels very fresh.

It has always been Li Shan's dream to be a warrior since he was a child, but unfortunately he has never been able to realize it. Looking at the soldiers in navy uniforms, Li Shan was envious, especially those female soldiers in white, who walked in front of him heroically, which made his eyes look straight, but these are just to see.

Although the airport is located on the outskirts of Shanghai, like other airports, it is built in a relatively remote place away from the downtown area.

Shanghai belongs to the subtropical monsoon climate, the summer is humid and sultry, and it is close to the sea, so the humidity is very high, as long as you stay outside for a while, the sweat will soak the clothes, which makes Li Shan from the north very uncomfortable.

As soon as Li Shan came to the airport, he didn't take a break and threw himself into intense work, after all, the army had repeatedly asked the factory to solve the engine problem as soon as possible, so Li Shan did not dare to delay.

The entire airport is located in an open area with few tall trees, mainly to prevent birds from staying there. Birds are a deadly threat to high-speed aircraft, and once an aircraft hits a bird, it's like hitting a cannonball, except that it doesn't explode. But this made Li Shan and the others suffer, and there was nowhere to hide under the sun, so they could only hide under the fuselage of the plane.

Replacing engine parts on the plane is more troublesome than on the test bench, because the shell of the aircraft has wrapped the entire engine, so the space available for operation is more limited, according to Li Shan's meaning to drag the engine out of the plane, but the engineer He Jun who has been in charge of technical services sent by the factory in the early stage does not agree.

If the engine is taken off from the plane, although it is not returned to the factory, but for the troops, this is an accident, disassembling the engine seems simple, not only to remove the shell part of the aircraft, but also many connected equipment after disassembly and assembly need to be re-debugged, it is a delay in time, which will not only affect the daily training and military tasks of the troops, but also cause a certain negative impact on the reputation of the factory, therefore, as long as possible, it is necessary to eliminate the fault on the aircraft.

But this is a bitter Li Shan, the engine installation space is narrow, and some conventional tools cannot be used in it at all. Take a mounting screw, for example, that if you work in an open environment, it may not take you a few seconds to get it done.

However, due to the limited stroke of the tool, only a quarter of a turn can be made at a time, and it sometimes takes a few minutes or even longer to tighten a screw.

The engine compartment was in a relatively closed space, and it was airtight, and after only staying in it for a while, Li Shan was soaked with sweat. Fortunately, there were no oil leaks everywhere like the test bench, and that was the only thing he was thankful about.

After a lot of effort, Li Shan finally divided the faulty pressure ratio regulator.

He Jun saw Li Shan's sweaty appearance, so he asked him to rest quickly for a while.

Only under the plane can block the hot sun, so everyone hides under the plane.

Li Shan sat on the ground, because his clothes were already soaked, and there were no outsiders here, so he simply took off his shirt, and occasionally a light breeze blew, but he also felt very cool.

He unscrewed a bottle of mineral water, poured down most of the bottle in one go, and watched He Jun and the others also busy on the side.

In order to prevent mistakes from occurring during installation for a while, He Jun and the others numbered one of Li Shan's parts in the order of each division and placed them neatly on a table next to them. When it is reinstalled after a while, the parts that are divided first are installed first, and the parts that are separated are installed first, so that the disassembly and assembly work can be carried out in an orderly manner.

For aero engines, the most parts on it are tubes, these tubes have oil pipes, air pipes and cable pipes, etc., large and small have hundreds of pipes, and the parts connected by each tube are connected with rubber rings. After each installation is completed, under normal circumstances, those parts such as rubber surrounds and air cushions are squeezed during assembly, and the parts that are squeezed during the secondary assembly are likely not to be in the same position, so these parts are one-time replacement parts, so He Jun and others also replaced the corresponding replacement parts by the way while sorting the parts.

That's okay, He Jun and the others are busy on the side, and at the same time, Li Shan can rest and adjust, and when they reinstall it back, they will still be busy.

While resting, Li Shan chatted with a soldier on duty with a gun on his back next to him.

Before he could say a word, Li Shan heard that this person's accent should be from his hometown, and when he asked, it was so, as the saying goes: When a fellow sees a fellow countryman, his eyes are full of tears, so the two talked more speculatively.

"I see how this epaulette on your shoulder is different from other people's?" Li Shan was also familiar with this soldier, so he pointed to the epaulettes on his shoulders and raised questions.

Whether it is through film and television dramas, or the experience gained from going to the army a few times, I basically know a little about the various ranks in the army, but the epaulettes of the soldier in front of him are very special, so Li Shan became interested.

"Oh, I'm a non-commissioned officer's epaulettes. The soldier said, looking over his shoulder.

Through further conversations, it was learned that he was a student who had just graduated from a prestigious university, and he was also a graduate student, and as soon as he graduated, he directly chose to join the army as a soldier.

For him to choose this path, this made Li Shan very surprised.

As for why, Li Shan didn't ask deeply, after all, it involved people's privacy, and he didn't keep asking like those mothers-in-law. Li Shan has also been in society for a while, and he is also very interested in what to ask and what not to ask.

Since this soldier has just joined the army, according to the army, he is a new recruit, and the first thing every recruit does after joining the army is to start by standing guard and sentry.

Li Shan suddenly became interested in the rifle in the soldier's hand, so he tried to ask him if he could use it for fun?

Without saying a word, the soldier directly removed the rifle from his shoulder and handed it to him, which made Li Shan extremely happy.

It was the first time he had ever touched a real gun, even though it was an old-looking one, with the wooden hilt covered in pulp, and some of the originally blue metal parts taking on a bright silver hue from constant wear.

This gun is more similar to the AK47 when he played computer games, but there is an extra triangular military thorn on it, as for what type of gun this is, Li Shan is not very clear.

Panasonic buckle, remove the magazine, see if there are no bullets in it (if there are bullets, they won't just hand it to him), and reload the magazine.

Then pull the bolt with a bang, aim, pull the trigger, and fire! Only a soft "click" was heard from the rifle.