Most of the drawings are stepped lines, horizontal or vertical, and there is handwriting on the side.

Although the two screens were large, they were easy to move, and they were quickly placed on the hall, one was carried to the side of the Empress Dowager Yang, and the other was lined up next to the fake ditch that had been built.

"This is the principle of 'layered weir building'."

Gu Yanzhang pointed to the screen.

He walked to the front of the table, led Zhao Fang to the front, and explained: "This is the Shangshan Gate. ”

Zhao Fang has been in Beijing for a few months, so he naturally went to Shangshanmen, but in front of the courtiers, he didn't dare to speak, and he couldn't help replying, so he had to nod.

Gu Yanzhang pointed to a person on the side: "This is Shen Cunfu, and he is the initiator of this method of 'layered weir building'. ”

Zhao Fang followed his instructions and looked over.

Shen Cunfu was holding a big copper kettle in his hand, he could hear Gu Yanzhang speak, and saw that it was Zhao Fang, the Son of Heaven, standing in front of him, so nervous that his hands and feet trembled, and he trembled: "Minister...... Chennaidu Water Supervisor Hydraulic Engineer...... Shen Cunfu. ”

Gu Yanzhang pointed to another person standing next to the screen and said, "This is Gao Ya, and he is also a veteran plumber in the capital water prison. ”

Gao Ya carried a bamboo pole in his hand and hurriedly saluted.

Little kids love stubbornness.

Although Zhao Fang is ten years old, he is usually still a big child, and when he saw the fake Bianqu, he was already attracted a lot of attention, and he listened to Gu Yanzhang's introduction, although it was out of politeness, and he nodded with Shen and Gao, but he still hung the building on the table next to him.

Shen Cunfu got Gu Yanzhang's instructions, raised the copper kettle in his hand, and poured the water into the "Bianqu".

Gu Yanzhang took Zhao Fang around the table and explained to them one by one, where is this place, where is that place, there are fields next to this, there are houses next to that, what is the terrain here, and what is the depth of the water there.

The building is made of batter and sawdust, the color is lighter, and it is not easy to leak, Shen Cunfu poured water into it, and the water flow was in it from high to bottom, slowly descending, it seemed, it was really a shrunken ditch.

Gu Yanzhang didn't have any paperwork in his hand, he just stood in front of him, pointed to the buildings and talked carefully, which place was mostly planted with grain, which place was mostly planted with trees, where there was a shortage of water, where there were villages, how many people lived in it, and how far away from the Bianqu embankment, all of them were familiar with it and talked eloquently.

Although Zhao Fang is a child, it can be seen that Gu Yanzhang is talking about political affairs, and he is going around the table, and he is not impatient at all, but he is following more and more closely, getting closer and closer, lest he miss it.

Empress Dowager Yang was behind the screen, and she couldn't sit still anymore, so she stood up and leaned over, just holding on to the screen and looking out.

Gu Yanzhang walked extremely fast, and it didn't take much effort to finish walking around the table.

Huang Zhaoliang stood aside, originally wanting to interrupt it as soon as possible, but unconsciously, he could already listen to it, and when he reacted, when he was about to speak, the other side had already returned to his original position.

He secretly regretted it on the one hand, and regretted it on the other.

Regret is regret that you didn't speak earlier; Regret is regret, this Gu Yanzhang, how can he say so fast and so little.

To explain to Zhao Fang, the ignorant little emperor, the words should be more detailed and more!

The canal is related to the national economy and people's livelihood, and it is naturally extremely important.

Huang Zhaoliang, as Zaifu, said that he didn't want to know more about the situation, it would be a lie.

It's not difficult to find a person who is familiar with the Bianqu, and it's easy to find a person who has been to Sizhou from the top to the good door, but if you want to find someone like Gu Yanzhang, who has carefully measured the water depth, hydrology, and topography of the Bianqu Canal with the hydraulic engineers, knows the situation along the Bianqu Canal well, and can make such a detailed summary in simple terms, there is really no one to find in the hall.

It's not that it can't be done, it's that there is no opportunity, no reason to do it.

Of course, if someone else had been given the task of taking over the survey this time, it is not known what they would have done. However, in the Manchu Dynasty, who can be so meticulous and thoughtful, and knows what the key is, Huang Zhaoliang counted the number of his subordinates, as if he had not had it for the time being.

He was one step behind, and his face was a little ugly.

There is a small ditch next to the fake ditch. And between the "Bianqu" and the ditch, it was originally blocked with something kneaded with batter and sawdust.

Walking to the original starting place, Gu Yanzhang pointed to the ditch and said to Zhao Fang: "Your Majesty, look, this is the old ditch for surveying, and it is the river channel before the diversion of the Bianqu canal. ”

Zhao Fang took a closer look.

Gu Yanzhang raised his head and suddenly shouted, "Shen Gong." ”

Shen Cunfu was still holding a copper kettle in his hand, and when he called him like this, he was a little in a hurry, and he didn't know whether to put the copper kettle down or continue to carry it in his hand.

Although he had already explained to him before entering the palace, but now in front of the Manchu Dynasty, the Son of Heaven, and the Queen Mother, Shen Cunfu only felt that he couldn't even make a sound.

He cleared his throat and held his breath as he reached out.

Seeing that Shen Cunfu didn't speak, Gu Yanzhang continued: "Your Majesty, please see, this is the place where the Dushui Supervisor plans to pile up the silt, and the silt should be dug up one foot and two feet and filled in the wasteland outside Xucun Lake." ”

Zhao Fang nodded, hesitated, and asked, "But what I just said, Xucundian, which has been flooded over the years?" ”

Gu Yanzhang said: "Exactly, because of the flooding of successive years, the land outside Xucundian has been abandoned, the Yellow River water is salty and astringent, for the blister for many days, the field will be difficult to grow grains, fruits and vegetables, can be carefully calculated, according to the previous years of the house on the river water soaked traces, every year here the flooded water is one foot three inches, once the silt is cleared, even if there is a flood again, as long as it is not such a hundred years of disaster, it can not overflow out of the embankment." ”

He also instructed Zhao Fang and said, "Your Majesty, look at what Shen Cunfu is pointing to." ”

Zhao Fang looked at it as he said.

Shen Cunfu finally found his voice and said, "Please...... The emperor pulled out the wood chips here. ”

It turned out that after a closer look, where Shen Cunfu pointed out, in this section of the old ditch and the Bianqu, there was a section of wood that could be moved.

This table is not high, Zhao Fang didn't need to step up, so he pulled out the wooden block as he said.

When Shen Cunfu didn't need to speak, he was very reliable in doing things, his eyes were quick and his hands were quick, and he stopped this section of the water with a special thing.

Zhao Fang pulled out the wooden block, and the flow of water was blocked again, and the water naturally flowed along the newly opened vacancy, and soon filled the old canal.

Gu Yanzhang asked: "Your Majesty, please see, is the water potential of the old canal and the Bian canal the same height?" ”

Zhao Fang nodded and said, "Yes, the two are the same height." ”

The faces of Huang Zhaoliang and Sun Bian in the back are already even more difficult to look at.