"oh."

Sheeran pulled the armrest above her head and looked at Fan Ning calmly. More and more passengers were crowding into the car. The distance between the two of them was getting closer and closer, and their breathing could be heard.

"Mr. Fanning, we need to post it all the way from the rear carriage." At this time, Mark squeezed through the crowd and squeezed between the two of them, "Are you interested in experiencing it from the beginning?"

"Not interested." The girl replied immediately.

"Okay, okay, it doesn't matter. I'll post it to the first section later." So Mark started to squeeze toward the back again, "This is a delicate job. The position must be correct, the pasting must be firm, and there must be no curling or folding corners.

There are too many passengers, it will take some time, sorry, sir,"

"What's wrong with you?" Fan Ning noticed that the deep blush in her skin spread from her cheeks to her collarbone.

"Ah? I was thinking about this magical underground rail transit system." Sheeran looked away and looked at the gas lights on the tunnel wall passing by outside the window for a few seconds before looking at Fan Ning's face again.

"Do you know how they were built? I find it a bit unbelievable why such a huge underground project was built, but the top of it still looks like a normal metropolis."

"You are thinking too magically." Feeling the girl's sweet breath, Fan Ning blinked and smiled, "They call it the 'cover and backfill' method. It seems to be a special term, but in fact it is the first thing you can think of.

directly excavated in the most violent way.”

"What is that?" The train stopped at the next station, a passenger next to him got up, and Sheeran pressed against Fan Ning in the avoidance room.

"There is a seat here, ladies first." Fan Ning reminded her.

"Hurry up, please, I'm too slow." Sheeran continued to ask, so the seat was occupied by someone else within a few seconds.

"First demolish all the buildings on the road, then dig a huge trench, then seal it with bricks and cement and backfill the trench, and finally rebuild the buildings and transportation facilities on the ground." Fan Ning described to her concisely.

In the previous life, the first subway in London used the same technology and only built a little over 6 kilometers and 7 stations. However, the people of this old industrial city developed the aesthetics of violence to the extreme. For the first time, they dug more than 20 kilometers in one go and installed 16 stations.

, and the car is a bit big.

"Ah, what a huge waste of destruction." She sighed, then distanced herself.

"Yes, this technology needs to be updated. The cost is too high and the risk is too high. The original surface construction will make the foundation of the excavation project unstable, and the troublesome weather in Santalan Fort will cause water and soil accumulation in the pits from time to time.

The tunnel was loose and collapsed. In order to discharge the thick smoke generated by the steam train underground, after the tunnel was completed, ventilation holes needed to be drilled to connect to the manhole cover on the ground."

Therefore, the most common argument among conservatives in the parliament, including most people in the media, about their future expectations is that "passengers will either be buried to death by landslides or poisoned by steam smoke."

It can be said that its completion has gone through many doubts and many obstacles. Fan Ning was not born in this life when the motion was made. From design to demonstration to construction to completion, it was already time-traveled before he read the news about the trial operation of the subway in the classroom.

Its pleasant experience immediately caused a 180-degree turn in the attitude of the citizens. Compared with riding a horse-drawn carriage every day in paralyzed traffic and anxiously counting pocket watches, this was simply a miraculous thing, and it immediately became the lifeblood of transportation in the imperial capital.

component.

"Sir, you may want to get up, we are putting up posters."

After the train traveled forward a series of stations, Mark finally returned to the carriage where Fanning and Sheeran were.

After a gentleman in high-collared casual clothes stood up, the staff put a few old newspapers on the stool, stepped on it, took a tape measure and glue and started drawing.

"Thank you, thank you so much." Mark, who was crowded in the crowd, did not forget to bow slightly.

"You're welcome." The other party looked at the black and white poster being pressed against the wall and subconsciously uttered a short phrase.

Then Fan Ning heard the voice on the other side, and a light flashed in his eyes.

"Is something wrong?" Xilan noticed something strange and asked quietly.

Since a space has been vacated, the squeeze of the crowd is spreading outward.
Chapter completed!