Van Keqin continued: "So it's very necessary to be vigilant at all times. What do you think? Is the secret check finished? Have you ever been passive? ”

Jiang Bin and Du Shengli did not answer immediately, but squatted down and continued to look at a certain place on the ground. After careful distinction, the two men glanced at each other and nodded at the same time. He got up and said, "I haven't been touched." ”

"Okay." Fan Keqin said: "Then let's see, how the results of the experiment are." ”

Hearing this, Jiang Bin and Du Shengli first looked at the four timers through the water, then fished them out and looked at them again. Jiang Bin took one of the pieces and said, "Record, the No. 1 timer did not find any abnormalities such as internal water storage. Then he glanced at his watch again, looked at the timer in the timer, and continued: "There is no problem with the operation, the deviation is about half a minute, but considering that there is a certain error tolerance, it is normal." ”

As he spoke, Du Shengli took a small notebook next to him and began to record it.

Jiang Bin put down the No. 1 timer, picked up the one next to him, looked at it again, and said, "The No. 2 timer, there is water seepage inside." Then he glanced at his watch again and continued: "But from the time it was in the water for more than eight hours, until this point, the operation was normal, there was a deviation rate of one minute to two minutes, and the error tolerance rate was still within the normal range......

Jiang Bin observed and recorded, and soon completed the experimental steps with four mechanical timers for water seepage tests. The end result was one of the timers, and no water seepage was observed. Of the remaining three timers, two of them, appeared to be waterlogged. Fog can already be seen inside one. In other words, three-quarters of the timers have water seepage.

However, after eight hours of immersion in water, although there was a high water retention situation, all four timers were operating normally.

In fact, the main reason for this is that the time is still short, and these timing devices are mechanical, although there is already water in it, it is impossible to die of rust and other failures immediately. This requires a process, so the final experimental results show that the timing device of these machines is at least eight hours long, and the timing effect is still not problematic.

Fan Keqin said: "This is a basin of water, considering the actual needs, we may have been in the sea at that time, and it was about three meters deep, which is completely different from now." So I personally suggest that you do an experiment in Zaijiang, at least the depth or something, which can meet the requirements. Get as close to the actual environment as possible and see how long these timers can still work. ”

Du Shengli said: "Yes, we did this experiment today. ”

Fan Keqin nodded and asked, "What about those mines?" What's going on? ”

Du Shengli replied: "In addition to the original charge department, there are also four water filling tanks, which were placed by me and Brother Jiang on the TNT. After entering the water, I measured it, and when the mine snorkeled to zero, it was directly about one meter and a half under the water. Therefore, Brother Jiang and I adjusted the depth fixing device in detail and repeatedly, and finally found that when the depth was set at two meters, the actual depth was three meters below the water surface. ”

Jiang Bin added on the side: "For the sake of accuracy, we also used four mines, and also conducted experiments in a deep section of the river. Indeed, as Victory said, when the four cabins were directly mounted on the TNT ladder, the depth was set at two meters, but the actual situation was about three meters below the surface of the water. You can't go wrong. ”

Fan Keqin said: "Very good, this is very important. After finishing speaking, he thought for a while and said, "Have you studied the mine trigger device?" ”

Jiang Bin nodded and said, "I have studied, the mine-triggered device is similar to the pattern of a firing pin." It's okay to destroy the linkage rod inside the two of them, but the trigger device of the mine is a bit too much, and it's just a little troublesome to destroy, and it's just stupid. ”

"Hmm." Fan Keqin said: "Okay, in a few days, I will find a few brothers with strong diving ability, and you will teach them how to use mines." Like you just said, isn't the timing device a double insurance? How to set the time for the church that wants to be hands-on. And they still need to practice, so you'd better dismantle the charge of a mine, a detonator or something. When the time comes, I'll arrange for them to train in the water. ”

"Understood." Du Shengli stepped forward and said: "These are not complicated, and they can be done quickly." ”

Fan Keqin said: "Okay, you can continue." ”

Next, Fan Keqin looked at the two people busy here. They also used double safety for the detonators and other things in the mines, so that one of the detonation systems failed, and the other detonation system was able to ensure the explosion of TNT.

After watching for more than an hour and nearly two o'clock, Fan Keqin couldn't always soak here, so he went out directly, took his bodyguards, and drove back to the Security Bureau again.

Zhuang Xiaoman followed him into the office, put the file bag on the table, and said, "Seat, the movements of the various team leaders and captains are very fast, and according to your request yesterday, all the lists have been reported." ”

Fan Keqin said: "Okay, I'll take a look first." ”

After Zhuang Xiaoman went out, Fan Keqin pulled out the list in the file bag and began to look at it. This list is not just a single name, and it is over. How good the water is, how many meters you can dive, and how long you can hold your breath underwater must be reflected.

In the end, Fan Keqin selected the twelve best water-based. Then I looked at another list, and this list was much more people, all of whom had joined the field team and the investigation office in the last half month.

The reason why Fan Keqin wants to use a large number of newcomers this time is because these people are all fresh faces, especially for Guangzhou, they must be fresh faces. These people Fan Keqin still have to be used as an insurance, and these need to be commanded temporarily, if everything goes well, they will not even be needed. But Fan Keqin can't let them go there and do nothing, just travel.

Fan Keqin looked at the list in detail and selected twelve people again. So the person who was selected before, the best in water and got together. After looking at it again, he reached out and pressed the buzzer, and said, "Xiaoman, you come in." ”

After Zhuang Xiaoman came in, Fan Keqin handed her the list and said, "These people, once again, let each captain investigate secretly and quickly, and let each team leader report to me separately after the investigation." ”