Chapter 511 (1/2)

Seeing that the road army said so, the girl in red also touched the round mines on the ground and said, ”but the people who are buried around us don't know. What if they are blown up when they come back?”

After the girl in red asked this question, Ruan Bing and Ruan Xue also put their eyes on the road army, waiting for the answer.

”Don't worry. This is a G20 intelligent sensing mine. It can distinguish the enemy and the friendly side. As long as the enemy steps into their sensing area, it will explode. Our people will be ok if they step in. As for the principle, I don't understand. Anyway, that's what the introduction said.” Lu Jun spread out his hands and explained to the girls.

Hearing the Lu Jun's words, all the women showed an expression of sudden enlightenment and touched these round induction mines again.

”Well, let's bury them separately. Dig a small hole and throw it in. Pay attention to concealment. If you find it in advance, you will be in trouble.” The road army raised an engineer shovel and picked up an induction mine to the women.

Although it is far away from the Research Institute and they are safe, the silent Crusaders have searchlights and patrols, so they have to be careful.

When the women heard the order of the road army, they nodded one after another, picked up the engineering shovel and the induction mine, and scattered to work

In this way, in the next time, the road army and Ruan Bing spent time burying mines, and soon covered their place with mines.

However, in addition to this location, there were main roads and other places waiting for the road army to bury them. However, the road army found that the efficiency of the four of them was too low, and it was dangerous to rush across the main road.

Therefore, for the sake of efficiency and safety, the Lu Jun spent 5000 dragon coins to buy three small robots specially used to bury mines from the trading module.

These robots are activated by A-level crystals and have a cube of hidden space inside them, similar to the space of the road army's armed module, and can put a large number of mines in it.

There is also a high-speed rotating drill bit at the foot, which can instantly dig the ground and put the mine in. It takes less than a second to bury a mine, and the efficiency is much higher than that of the road army and others.

The most important thing is that these robots have bionic coating, which can integrate into the surrounding environment by using the coating in the daytime and at night, which greatly increases its concealment.

Looking at the small robots that have started to work, Lu Jun prayed silently in his heart that these robots and induction mines, which cost him nearly 10000 dragon dollars, must be effective, or he will lose a lot of money

With the passage of time, more than an hour passed quickly. During this period, the robot people worked very smoothly. They buried nearly 3000 induction mines around the Research Institute, and they have not been found.

Seeing the robots returning to their original place after completing the task, the road army was very satisfied and took all the three robots back for next use.

But the road army was also a little agitated, because after so long, they had no news at all. What's the matter?

Just as the road army was thinking, a deafening sound suddenly sounded from an unknown position in the distance, and a mushroom cloud rose. It was not necessary to guess that there was a huge explosion.