Zhuo Zhongkai led 6,000 soldiers, escorting the household department, the military department and a large number of supplies all the way north, four days later arrived at the south bank of the Yishui River, the ice on the river had already melted, and a large number of ships prepared in advance transported personnel and materials to the north bank.

After another four days, the team arrived in Jicheng.

Meng Tong greeted him outside the city, and the soldiers set up tents outside the city for the night, taking turns guarding the supplies.

The officials went into the city to stay in the city.

Before Li Zuoche's squad returned to the court, according to Zhao Xie's instructions, Yandi was divided into two major areas.

The first area is Jicheng and Guangyang County, where it is located, with a garrison of 20,000 troops, and Meng Tong is responsible for defense, the main purpose is to guard the most central area of Yandi with Jicheng as the center;

The second area is Shanggu County, Yuyang County, Youbeiping County, and Liaodong County on the border with Saibei, with a total strength of 60,000 troops, under the jurisdiction of Du Zhen, whose main responsibility is to guard against northern nomads.

After spending the night in Jicheng, the team continued northward and would trade with the Xiongnu on the northern border, and Du Zhen had been informed in advance that he would assist him.

——————

Xiangguo, this afternoon, Zhao Xie was in the study to review the chapter.

It has been less than two months since Yandi was included in the governance of Zhao State, and there are many things to deal with, and eighty percent of the music belongs to Yandi.

In order to recount the population and promote a new tax policy, some officials of the central household department were sent to Yandi to work with local county officials.

One of the letters was written by a household official who had been sent to Yuyang County to report on the progress of the reform measures, and it was generally carried out smoothly.

The monopoly of salt and iron is also a major reform, and it is the second only financial source after Tian Fu, and five days ago the merchant's deadline for business has been reached, and it turns out that a merchant is still secretly selling salt, and the price is slightly lower than the price set by the Ministry of Commerce, and he has now been arrested and all his property in Jicheng has been confiscated.

In this regard, Zhao Xie and Uncle Lang of the Ministry of Commerce had already discussed that any merchant who violated the laws of the imperial court would be punished very severely, which would not only have a deterrent effect, but also enrich the treasury with confiscated property.

After reviewing it for more than half an hour, the chamberlain came to report that the technical department had made the repeater, and Huang Shangshu sent someone to inform him.

Haha, it finally worked, and the repeater came out! Zhao Xie was very excited and immediately left the palace to go to the technical department.

Somewhere in the north-central part of Xiangguo, there are renovated building complexes, and the location of the technical department is here.

Since the establishment of the Ministry of Technology, it has become an important place for the imperial court, and it is necessary to ensure absolute security and strictly prohibit the leakage of confidential technology. Outside the main entrance of the technical department, there are heavily armed soldiers closely guarded, around the building, three steps, one sentry, five steps and one post, and there are also mobile personnel, no one can sneak in or out.

All people entering and leaving the place must register, including their name, name and time.

King Zhao's car stopped in front of the gate, and Zhao Xie walked in quickly.

"Where is Huang Shangshu?"

"Your Majesty, Huang Shangshu is in the test area."

Zhao Xie walked briskly towards the test area.

When Huang Tingjing first came to Xiangguo, Zhao Xie ordered people to rebuild this place according to actual needs, and divided it into different areas such as research area, manufacturing area, experimental area, office area, and archive area.

Research and improvement of technology is generally carried out in the study area, and if the technology is successfully improved for a certain object, a sample can be made in the manufacturing area and tested in the test area.

Zhao Xie came to the test area, which has a large area to meet the test requirements of different samples.

At this time, Xue Ding was holding a repeater and firing continuously at the arrow target in the distance.

Seeing King Zhao coming, Xue Lu hurriedly stopped and saluted the king with Huang Tingjing.

"The king, the minister has continued to improve, tried many times, and finally succeeded!"

Huang Tingjing said excitedly.

There was a table with a repeater and many arrows on it.

The volume of the repeating crossbow is larger than that of the single-shot crossbow machine used by individual soldiers, and Zhao Xie feels very heavy when he picks it up with both hands, fortunately, this body has been involved in manual labor since childhood, otherwise even if he can barely pick it up, he will not last long.

Looking at the finished product of the Zhuge Repeater for the first time, Zhao Xie first took a closer look.

The repeater machine is divided into two parts: the arrow box is on the top and the rack is on the bottom, and the arrow box and the rack are connected by a lever. The firing slot is located near the bottom of the receiver, and there is a transverse recess at the end of the firing slot, and the thin strings pass through the front end of the firing slot, and the two ends of the strings are tied to the ends of the bow at the front of the lower rack.

Zhao Xie himself knows the relevant principles, and after looking at it, he wants to use it for himself.

The first is to load the arrows, above the repeater is the arrow box, there is an arrow box cover cover, Zhao Xie put the crossbow back on the table, opened the arrow box cover, picked up the arrow on the table and put it into the arrow slot.

The arrows used in the repeater are very different from the arrows of the bow, the body of the arrow is slightly smaller, the length is much shorter (about 25 cm), and the tail of the arrow has no feathers, which is specially made for the use of the repeater.

Zhuge repeater can fire ten arrows in a row, the height of the arrow box is based on the vertical row loading ten arrows, after putting in ten arrows, just fill the arrow slot, after closing the arrow box cover, Zhao Xie picked up the repeater again and aimed at the target in the distance.

The distance from the target is about 30 meters by modern length standards.

Zhao Xie held the repeater rack in his left hand and the handle of the lever in his right hand. When he pushes the grip forward, the receiver moves forward and upward, and when the recessed part at the rear end of the firing slot touches the crossbow string, because the frame is at the lower end of the receiver and the firing slot, the crossbow strings that cross the firing slot laterally and connect the two ends of the crossbow naturally have downward pressure, and the pressure causes the crossbow string to fall into the transverse recess.

When Zhao Xie pulled the lever back, the arrow magazine followed backwards and downwards, and at the same time pulled the crossbow string to open, because the lever principle was adopted, the process of pulling the crossbow string to open did not take too much force.

When the lever is pulled back to a certain extent, the receiver follows downward and backward, and the lever happens to make contact with the string in the launch slot, and then the string is pushed out, and the elastic force of the string ejects the arrow in the launch slot.

With a "whoosh", the arrow shot out of the emhole, and the arrow steadily entered the wooden target.

After the arrow is fired, the arrow in the arrow slot at the upper end of the launch slot will automatically fall into the horizontal slot, and Zhao Xie will push the grip forward with his right hand, repeating the action just now, and the continuous shooting of the repeater will be realized.

According to the professional vocabulary of modern military, the shooting method of the repeater crossbow belongs to semi-automatic shooting.

The wisdom of ancient people is not necessarily worse than that of modern people, because of Zhao Xie's detailed theoretical knowledge as a guide, and Huang Tingjing's mechanical ability is at the forefront of this time and space, he can make a repeater in a short time.

According to the information consulted in modern times, the Zhuge repeater can shoot ten arrows in six seconds at the earliest.

Zhao Xie tried again, doubling the distance of the arrow target, although the crossbow could shoot to that position, but the accuracy was already much worse.

Immediately, he thought about the sights.

In the Warring States Period, human beings have known how to install Wangshan on the crossbow machine of crossbow arrows for soldiers to aim at the target, and the crossbow machine of the Zhao army during this period also did not have Wangshan, but there was no scale.

The scale is like the ruler of modern weapons, and the crossbowman selects the corresponding lookout scale according to the distance between himself and the target, forms a line of sight and fires, which can greatly improve the accuracy of hitting.

The crossbow is difficult to install in the lookout, which will obviously affect the accuracy of shooting, and the advantage of the repeater is that it is a fast burst, and it is not necessary to completely replace the single-shot crossbow machine.

Wangshan with a scale first appeared in the Western Han Dynasty, Zhao Xie can make appropriate improvements to the existing crossbow machine, and adding a scale to Wangshan is one of them.