Lin Feng left the military region in a hurry, in order to earn more than 30 billion, he felt that it didn't matter if he took two months off, but he had to say hello to everyone first.

Although he could communicate at any time, it would take some time to run back and forth for such a long distance, so as long as nothing particularly serious happened, he was still ready to open all the tunnels and come back.

The first thing that needs to be arranged is the order of the Starry Sky Silkworm, and his current money is only enough to order 110,000 pieces, so Hu Yihai must collect the funds as soon as possible.

There are also garbage recycling machines, Han Minghao has already negotiated with the municipal government, and all the garbage dumps in Rongcheng will be taken over by Linfeng Environmental Protection, a total of 20 units, which require 5 billion.

There is also a new sewage factory, and the purchase of equipment will also cost about 500 million.

If he is in Rongcheng, he can easily arrange a turnaround. Now that he's on a business trip, everything can only be solved by spatial teleportation.

So he asked Han Minghao to rent a large warehouse, and let Jia Xiaoliang take people to guard it 24 hours a day, and at the same time, he installed an automatic defense system, which was connected to the bracelet and could be controlled remotely.

That way, everything would be transported to the warehouse first, and then he would have someone pick it up.

And all the goods will be escorted by Jia Xiaoliang during transportation. There is no need to worry about large-scale equipment, mainly those fragile starry sky silkworms, if someone deliberately destroys them, a car will be a loss of hundreds of millions.

As for other industries, he doesn't need to worry too much, and the respective person in charge will do their job well.

And he can also access the Internet through the bracelet in the tunnel, and always pay attention to all the dynamics.

In the end, he went to the academic affairs office to ask for leave, and encountered a small problem.

Taking too long a leave of absence will cause him to not have enough hours this semester. In the end, it was Political Commissar Li who greeted the school's senior management through Mayor Qin, and this super long holiday was approved.

But he must ensure that he does not fail the course at the end of the semester, otherwise he will wait to take a leave of absence, and then he will be in the same class with his younger brothers and sisters next year.

Lin Feng naturally wouldn't worry that he would be a repeater, even if he was asked to complete all future courses at the end of the semester, he was 100% sure.

The super effect of the sobering powder is not for bragging rights.

After everything was arranged, he went to the military district station and pretended to fiddle with the machine in the workshop.

There is no need to improve at all, just reset the parameters and increase the thickness of the inner wall of the tunnel.

The wall thickness of the previous one dug in the station was only 20 centimeters, and the other products that were converted were made into foundations. Now he wants to make the foundation a little smaller, increasing the wall thickness to 1 meter.

In this way, even if you encounter 10 times the explosion volume of conventional missiles, there will be no problems in the slightest.

After setting up the shield machine, he turned on the supramolecular material processing equipment and made thousands of drill bits and taps. Only supramolecular materials can easily drill through the inner walls of tunnels and thread them for the installation of sleepers and rails.

The huge open space of the station was already full of trucks of various types, loaded with materials, sleepers, rails, wires, electric lights, etc., all kinds of tools, and daily necessities like a hill.

There are also more than a dozen converted tanker trucks that will become makeshift toilets in the tunnel.

Thousands of engineers have already begun to assemble, as long as Lin Feng's side starts construction, the subsequent construction procedures must immediately catch up.

This is the power of a great power, which can easily mobilize so many resources and manpower to complete a huge project that is unparalleled in the world.

If it can be published to the world, I am afraid that the whole world will be shocked.

Political Commissar Li and the commander of the military region, as well as a group of generals, lieutenant generals, and major generals with medals on their chests, were present in person, and they all gave Lin Feng a look of concern.

If this project can be successfully completed, it will not be the western border that is secure.

Any important military fortress and border in the country can be connected in such a way, and when the time comes, the transportation of troops and materials will reach a terrible speed of maneuver.

From south to north, from east to west, it only takes a dozen hours, or even a few hours, to form a large-scale strategic transfer, and there is no need to worry about being discovered or destroyed by the enemy.

This will make Huaxia invincible on this land.

For the first time, Lin Feng felt the kind eyes of so many big people, and shook hands with Political Commissar Li a little uncomfortably, and then carried a backpack and got into the cab of the shield machine.

The terrain has already been surveyed, the program has been set, and the TBM will work automatically as soon as the start command is issued.

Boom - Boom –

There was a loud noise, and the two-meter-high EPB threw off its nimble drill bit and plunged headlong into the ground.

The tunnel was to be kept at a depth of 50 meters from the ground, then to the west, to the mountains, and then slowly upward, to drill out of the ground at a military stronghold near Lasa, and then continue to Barigas.

Lin Feng drove the power to the maximum, and the 15-meter-diameter tunnel was still able to maintain a high speed of one meter per second, but the energy loss was obviously accelerated.

He roughly calculated that digging 1 kilometer of tunnel would consume about 1/100,000 of the stored energy. In other words, if you want to dig this 3,300-kilometer tunnel, you don't need to replenish energy blocks.

At the point of 1 km, the EPB automatically turned and began to dig a two-meter diameter vent horizontally to the side.

Many people think that the vent is at the top of the tunnel, but everyone is wrong.

The vents of the military engineering are on both sides of the tunnel, and after a straight section, dig down a few meters deep, turn a U-shaped bend and go up.

This is to prevent malicious vandalism from the enemy, such as throwing explosives and powder packets from vents, except that the diameter of the vents in ordinary tunnels is not so large.

At a distance of 5 kilometers, a 200-meter ear hole was dug horizontally to store supplies and station maintenance personnel.

After 5 kilometers, Lin Feng confirmed that there were no problems and left the cab temporarily.

A vehicle followed him behind the TBM, liaising with him and acting as his vehicle in the tunnel. He asked the driver to drive back, and when he reached the two kilometers mark, he found that the lights were bright and the sound was shocking.

All kinds of materials have been pulled into the holes, thousands of engineers are working intensively, drilling, tapping, installing fixing bolts, a dozen engineers are constantly measuring, marking, and many more are laying sleepers and rails.

This made Lin Feng sigh again, it was only more than an hour, and more than a kilometer of track had been laid, and the power lines on both sides of the tunnel had been erected, and an electric locomotive was slowly driving from the entrance of the cave, dragging several flat cars, loaded with more materials.

That's the great power speed!

He even wondered if he could keep laying at this speed, would he be able to take the train back after digging the head?