At four o'clock in the afternoon, a project was underway in the old city of Chang'an City.

"Your Majesty, have a cup of tea." Nicole brought over a cup of tea.

Liu Feng put down the documents in his hand, took the tea and began to drink it.

"Your Majesty, this is a progress document for the establishment of the sewers in the Old Town." Allie reported.

Liu Feng's eyebrows were slightly raised, he took the letter and began to flip through it, the sewer project was constructed a few months ago, digging tunnels, cement, standing supports and so on.

Last year, when the rainfall entered the summer, there was so much rainfall that ordinary drainage channels could not drain the rainwater in time, resulting in water accumulation in many places in the old town.

Not only does it affect traffic, but also the business of stores, and the new city has been built with sewers in mind, and now only the old city does not have it.

At that time, when the old city was built, there was a lack of manpower and material resources, and there was no condition to build sewers.

There are many incidents on this side of the otherworld that do not have sewers, or favorable drainage systems that cause flooding cities, even on the other side of the earth, not to mention the otherworld.

"The progress is considerable, and it will be completed in almost half a month." Liu Feng nodded in satisfaction.

In order to drain water safely and smoothly, the construction of sewers consumed a lot of cement and steel.

"Your Majesty, you didn't tell me last time how this sewer drains, how does the rainwater flow out through the crooked passage?" Allie wondered.

She always thought that the sewer was just piling up all the water underneath.

"This is very simple, the flow of water in the sewer is completely dependent on the difference in gravity, which means that the principle of water flowing low is used to drain the water." Liu Feng explained simply.

"So it is."

Allie looked at the drawings and continued, "But this sewer looks quite wide. "

The entire sewer is two meters high and wide, crisscrossing the entire underground of Chang'an City.

Mina squinted her eyes slightly, approached the fox ear lady and said, "Silly fox, you know what, there is a lot of content in this." "

"What?" Allie was aroused by curiosity.

Mina coughed lightly and said seriously, "This sewer connects the underground veins of the entire Chang'an City New Town. "

"You said this sewer can convey a lot of information?" Allie is not a fool, naturally knows the meaning of the cat-eared lady's words.

"The entire headquarters of the Security Division has been moved to the sewers of the new city." Mina said seriously.

"What? Move the headquarters of the Safety Division to the sewer? Wouldn't that be flooded. Allie exclaimed.

"Of course not, there is a separate place in the headquarters of the Security Division that will not be flooded." Mina explained.

Allie nodded thoughtfully, this is hidden, and even secretly obtains a lot of information.

Liu Feng sorted out the documents, handed them to the cat-eared lady, and said, "The people of the division, pay more attention to the construction of the sewer project. "

"Understood." Mina answered immediately.

Allie walked back to the position and picked up a letter and said, "Your Majesty, this is a place of chaos, two letters from Bella's side, one for Your Majesty, and the other for Tissy." "

"For me?" Tis was surprised that the eldest sister hadn't written to her for a while.

"Tis, take a look, Allie read another one." Liu Feng buried his head and continued to look at the other documents.

Allie tore open the letter and reported, "Your Majesty, Bella said that the amount of saltpeter will increase next time, and asked Your Majesty to give more weapons and armor. "

"Yes." Liu Feng agreed, and there were still some old spears and leather armor in the inventory.

"Your Majesty, there is another request to buy more medicine." Allie continued.

Liu Feng raised his head and asked, "Did you say what type of medicine to buy?" "

"It's still the same medicine as before, the medicine to prevent wound infection, and some fever-reducing medicine." Allie continued.

"Well, let the hospital arrange it first." Liu Feng nodded lightly, and then held his forehead and thought.

"Your Majesty, is there any problem?" Allie quickly asked.

"It's okay, I'm just thinking that the last time they bought a lot of medicine, so quickly and again, it seems that the war has expanded again." Liu Feng said softly.

"Could it be something else?" Allie guessed.

Liu Feng took a sip of tea and said in a deep voice, "There is another possibility, that is, the efficacy of the medicine is not enough, which caused them to use a large amount of medicine. "

"Your Majesty, is there a problem with our medicine?" Allie said nervously.

"It's not that it's a problem, it's just that the effectiveness may not be so good." Liu Feng sighed, after all, due to the limitation of production technology, it must not be comparable to the medicine on the other side of the earth.

"Your Majesty, the people in the pharmacy and the scientific research department have been developing new drugs, and I believe that there will soon be stronger effective drugs to replace the current ones." Allie said with brown eyes.

Liu Feng turned his head and said with concern, "Tisi, how is it?" What did your eldest sister say? "

Tis quickly hid the letter behind her, her face slightly red, and said, "No... It's nothing. "

Mina squinted her eyes slightly, smiled and teased, "Is it really nothing? "

"Seeing how nervous you look, could it be Bella who let you go back?" Allie echoed.

"How is it possible, the eldest sister didn't let me go back." Tice quickly shook her head.

"What's wrong with that? Any questions? Liu Feng said gently.

"It's okay, big sister let me take care of myself." Tice hurriedly spoke the letter

"It's okay." Liu Feng nodded gently, burying his head and continuing to process the documents.

The bullhorn lady was pulled aside by the delicate Nicole, and said softly, "Tis, is your eldest sister worried about your marriage?" "

"Hiss..."

Tice gasped and was surprised, "Nicole, how do you know." "

"Looking at the way you blush and dodge, you can probably guess it, but I didn't expect it to be true." Nicole covered her mouth and smiled.

"The eldest sister will talk nonsense." Tice muttered.

Nicole brushed the broken hair of the bullhorn and said, "If you want, I can help you." "

"Nicole, you make fun of me too." Tyss blushed in shame and ran out with the letter.

。。。。。。。。。。。。。。

"Two more,( ̄▽ ̄). Ask for customization, ask for support. "_

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