Cai Huiying's words were not just words, he went to the studio to launch a batch of brand-new protective clothing with a trolley and told the students to wear them.

"This thing looks pretty bulky, and if I accidentally hit the street, I guess I'm going to float down the drain." Chen Bo smiled.

"Your weight, it's impossible to float away, it will cause the sewers to be clogged." Wang Xu joked.

When Chen Bo really picked it up, he realized that it was not the case, the protective clothing felt light, but the size was a bit stranglesome, and he rubbed the surface, there was more than one layer, which should be an adsorptive material.

Carefully put it on your body, like wearing an airtight shirt, and there will not be much obstacle when you take two steps.

Wearing a filter mask, everyone glanced at each other a few times to check if it was not done, Wang Xu helped Chen Bo smooth out the folds, and also helped him tuck his trouser legs tightly.

"Are we going to deal with a nuclear accident leak? Warrior Number One asks for instructions. Chen Bo raised his arm to look around, and from time to time he reached out to his back and touched it.

"It's always better to be prepared." Wang Xu's voice has a sense of heaviness, perhaps too close to the filter layer.

Thirty years ago, people advocated that the iron rice bowl was good, and death should be in the establishment, and this phenomenon still exists today.

I have to say that for most ordinary people, being admitted to the civil service is indeed the best solution, and the counterattack in the Fantasy Immortal Cultivation cannot happen to them at all, and it is really commendable to be able to live a stable life.

The iron rice bowl is also divided into three, six, nine and so on, the establishment of the Maple Leaf District belongs to the fighter jets in the fragrant pastry, people used to like to say that it is an honor to be a dog of the Ming Dynasty, and now people are also willing to advocate that being a civil servant in the Maple Leaf District is a blessing for several generations.

Someone on the Internet did a poll, 10 million cash and the civil servants of the Maple Leaf District chose one, and 90% of people chose the latter.

Chen Bo's impression of sewers is made up of all kinds of indescribable odors, allergic sewage that can cause allergies to the slightest touch on the surface of the body, and rats foraging for food.

In a word, it's dirty and messy.

The manhole cover leading to the sewer is actually in the room of the Urban Construction Bureau, located in a corner of the first floor, and there is a separate room, and various instruments placed around it are operating in an orderly manner, and the feedback data is transmitted back in time to detect whether the indicators are abnormal.

Cai Huiying pressed the switch, and the blue-blue tiles rotated counterclockwise to open a passage.

"Is this staircase serious? Even handrails are available. Chen Bo followed behind the crowd, keeping an eye on the steps under his feet all the way.

Several bronze metal openwork lamps are installed on the arched walls, as if deliberately creating the feeling of a steam age, but unfortunately not kerosene.

"This is specially for visiting, so you can have a place to stand, most of the sewers are U-shaped design, people are impassable, you can only wade through."

After Cai Huiying's introduction, she took the initiative to walk in front of the flowing sewage, raised a flashlight and shone it, which was not clear, but it was not the kind of turbidity that she imagined.

As for the story of sewers, people who like to advocate American imperialism often say that Western sewers can open tanks, even if they are exaggerated, but it is indeed a fact that people's sewage treatment concepts are advanced.

Many of China's first-tier cities are flooded and clogged on rainy days, and the original system was built according to the productivity levels of the seventies and eighties of the last century, with the exception of Qingdao, which was designed by the Germans.

Legend has it that once the sewer parts were bad, and because the materials were imported, the workers had to call the German engineers for help, who told them that replacement parts could be found within three meters of the parts.

Sure enough, the workers found an oilcloth bag containing all the necessary parts, a joke used to promote the rigor of the Germans, the authenticity of which was self-evident.

Qingdao's excellent drainage capacity is due to the climate and topography, and it is also inseparable from the efforts of local officials.

"Are there any fish here?" One of the classmates shouted.

Cai Huiying explained: "Well, sometimes there are, the drainage holes of those ornamental pools are relatively large, and small fish can get into them. ”

Chen Bo raised his hand, completely out of reach of the ceiling, estimated to be 5 meters high, and he also noticed that the water did not flow straight down, and several strange whirlpools formed in the rush.

"The sewage discharged from the city will be filtered and adsorbed in the sewers, and the water vortex you see is actually a pressure filter."

The female student who accompanied the group asked, "Is it to suck dirt onto something that looks like a fan blade?" If the fan blades are dirty, the adsorption effect will not be greatly reduced? ”

"It's pretty much the same, but all the equipment doesn't work 24 hours a day, and during the rest period, the switches are closed, and we regularly send people to replace parts."

Cai Huiying raised his hand and pointed to a bright spot, "The current materials are basically degradable materials, and we are equipped with a large number of fishing robots downstream to pick up the fish that have slipped through the net." ”

"Can you drink this water directly?" A large male classmate leaned down curiously.

Cai Huiying stopped: "It doesn't meet the drinking standard, I don't recommend you to do it." ”

Wang Xu took a scoop of water, and there were really a few small fry, looking at the species, it should be koi, he held it in his arms and looked at it a few times, and poured the water back untouched.

"What are you thinking, you're not afraid of skin allergies." Chen Bo had no plans for this, he was far away.

"You're fake as a protective suit, this water isn't very dirty." Wang Xu dipped his toes and splashed them on Chen Bo.

"Hey, what are you doing?" Chen Bo was so frightened that he jumped up and down, as if he had been splashed with concentrated sulfuric acid.

"It's really okay, you see Brother Ying doesn't even have a mask." Wang Xu shrugged his shoulders and looked at Chen Bo playfully.

Back to the surface, Cai Huiying introduced the various indicators of water quality monitoring to everyone, and the hundreds of changing values on the electronic screen made Chen Bo dazzling, he only knew that green represented normal, and red was abnormal.

There are more than 50 monitoring points in the Maple Leaf District, where there is a problem, it can be immediately reflected through the system, Chen Bo peeked at the interview record a few times, and a restaurant owner was called twice this year, both because of illegal handling of the water.

Cai Huiying also showed the whole picture of the maple leaf area under intelligence, from the composition of various materials in municipal projects to the variety life of a tree, everything in the entire city is recorded in the database.

"Even the suppliers of the screws can tell which ones supply them, which is terrible."

Chen Bo was speechless for a while, at most, he hung up the main responsible person for the project in that era, and even the screws could be held accountable for who it was, and the details were scary.

"There are records of several insecticide sprays on the trees...."

It's no wonder that the Maple Leaf District has a zero crime rate, and if you really want to live in this kind of place, you can't be honest.

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