The people who dug the cave chose this valley for secrecy, and the number of people hiding in it continued to rise, but they were unwilling to venture to other places to re-establish their bases, so the caves in this valley were dug out layer by layer like buildings. Pen? Interesting? Pavilion wWw. ｂiquge。 ｉｎfo

Although some of these places have collapsed due to poor technology, slowly the technology has improved, and through various reinforcement methods, this multi-storey cave form has been able to stand here.

The combat engineer platoon took advantage of these multi-layered, multi-angle caves, and with not too sophisticated computing power, to find their key points and place explosives bags in these places.

At the same time, in order to increase the power of the explosion, they also specially dug deep holes in these bearing points, put explosive packs in them, and then plugged the holes.

It is important to know that in a sealed environment, the power of explosives can be maximized.

The engineer platoon commander and a squad of soldiers galloped wildly until they reached the designated safety zone.

The second squad leader and the remaining soldiers were already counting the numbers there, the length of the fuse and the burning time were quantitative, and on the premise of knowing this data, the combat sappers who were used to playing with explosives had a rough estimate of the explosion time.

Watching everyone count together, the platoon commander thought of the clock under development that he had seen in the laboratory.

I couldn't help but sigh with emotion, "If there were clocks, it would be much more convenient to calculate the time." ”

As soon as the squad leader next to him tied up the war horse, he heard the platoon commander's self-talk, and asked curiously, "Platoon commander, what is a clock?" Can you actually calculate time? Is it a sundial that keeps time? Or is it the same as a copper kettle dripping? ”

Seeing that there was still a little time before the fuse burned out, the platoon commander explained softly, "I can't say, if you say that it looks like the corona, it can be said, but it doesn't seem to be accurate, the corona calculates time through the angle of the sun, and the clock counts through the power of machinery." At the same time, it can also keep accurate timekeeping like a copper kettle dripping. It's an innovation. ”

The first squad leader suddenly lost interest: "What's the use of that?" Something about the same as the corona, so big and heavy that it is impossible to bring it to a field environment. ”

The platoon commander patiently explained, "What if, this clock can be made very light? ”

"How light can it be?"

"The last time I saw the sample, it weighed almost 3 pounds."

"That's okay, it's very lightweight, why don't you put it into use?" The squad leader is very sure that this thing has not been put into use, you must know that the general's support for the army is obvious to all, if this kind of good thing that can be timed is put into use, the first user must be the army, but I have never heard of any unit equipped with this kind of thing. So, he had a guess, "Is the timing inaccurate?" ”

The platoon commander immediately retorted, "It can't be a problem of inaccurate timing, when I saw that test object last year, I found that the thing went more accurately than the copper kettle leakage." ”

"What could be the reason for that?" The first squad leader was really curious.

"I've heard that the general is very dissatisfied with the size and weight of this thing, saying that it is too big and too heavy."

"3 pounds, it's not heavy, what does the general want?"

"I heard that the general ordered the target to be able to wear this kind of machine on the wrist without affecting the movement of the wrist."

"Hey, is that possible?"

"The general's request should not be untargeted. This technology must have been realized, and I later heard that the general had spent a lot of money to bring in some great craftsmen from the Ming Dynasty to make small jewelry, and these people were already working on making watches much smaller than the original clock. ”

"Is this a general who wants to popularize clocks and watches to individuals?"

The platoon commander nodded, "It is very likely, you know, when we are fighting now, the forces are becoming more and more dispersed, the previous war is an example, in the initial raid operation, there were several actions of a few thousand people, and they were actually divided into many different directions, and launched attacks from the territory of more than a dozen states and counties at the same time, if we can't accurately grasp the time, it will greatly reduce our combat effectiveness."

Also, we combat sappers can use it when they plant ignition explosives, and if we were equipped with that clock, would we still need such troublesome counting? As he spoke, he motioned to look at the sappers who were counting.

"It's really, I'm tired of this kind of counting days, counting and counting may be wrong, sometimes all the people count wrong, I don't know the real time, seeing that the front is not exploding, I am nervous in my heart, I am afraid that it is a squib."

At this time, the numbers of everyone began to mess up, some were block, some were slow, the fastest had already counted the time point of the explosives explosion, and the slowest was still dozens of breaths away from the explosion of the light.

"Fortunately, it's not on the battlefield, if it's on the battlefield where every second counts, I don't know the real time, and I can't be sure whether it's a squib or not, it will be a bad thing."

"That's right, it seems that you should report to your superiors and apply for an original clock, even if it weighs 3 pounds, it is much stronger than something like a corona that you can't carry with you."

At this moment, a series of explosions that were not too loud were heard, and 107 dug out blast holes exploded one by one.

From a distance, however, this was not the case, and in the eyes of the combat engineers, the mountain began to collapse first, and then a series of explosions began to appear.

Starting from the places where the explosions sounded, the mountain began to collapse from several caves on the first floor.

After that, there is a cave on the second level, and a cave on the third level.

The two stone mountains that surrounded the valley really began to collapse, and everyone's feet continued to tremble, and the dust and mist of rambling words filled everyone's sight.

The horses and carts wailed miserably, and their heads shook incessantly, trying to break free from the reins that bound them.

However, Xuan Jun began to use firearms very early, and it was not the first time that the shining bag had been used, so he had expected this situation for a long time.

The hitching stakes were firmly nailed to the ground, and then fixed in a triangular way with several ropes, and the Mongolian horses, donkeys, and mules tossed there, but there was no way to release the reins.

And the owners of the horses will not come close at this time, and when the horses are crazy, they are looking for death, as long as they wait for a while, they will be quiet.

Therefore, the soldiers of the combat engineer platoon ignored the noise here and watched intently at the rare scene of landslides and ground cracks.

However, as the mountain collapsed and cracked, a thick liquid erupted from the blasted ground.