"Not charged yet?" Zhang Shengli often saw Liu Qian sitting on the roof of the highest building in the prison, with a handheld computer with solar panels on his side, but he never turned it on, and he estimated that this handheld computer must have some special meaning for Liu Gan.

"No, the solar panel is too small, the computer needs too much power to run, although the light on a cloudy day can also be charged a little bit of power, but the light intensity is too weak, charged for so many days, just turn on the machine and the power is used up before entering the system." Liu Qian shook his head.

"Can't you try it with another external power supply?" Several of the new recruits are knowledgeable about electronics. Zhang Shengli suggested a few words to Liu Qian.

"I looked for them, and they said that this thing is a one-piece structure, the circuit design is very complex, and it adopts encrypted packaging technology, and there is no labeling and explanation, I can't understand it at all, and I don't dare to power up the experiment casually, and I may burn the chip inside if I try it randomly." Liu Qian shook his head.

"There's important information stored in it, right?" Zhang Shengli had a curious expression.

"Well, what we got from a staff member of the Three Domains Corporation has to do with whether or not we can teleport back to the real world." Liu Qian looked in the direction of Qingpu Port, if it was so cloudy, I am afraid that this handheld computer could only be opened again when it was taken to the space laboratory in the main city.

"Then don't try it out." Zhang Shengli heard that the information was so important, so he didn't dare to suggest anything casually.

"What's the matter with you coming up to me?" Liu Qian asked Zhang Shengli.

"Regarding the construction of the prison camp, I would like to have a plenary meeting to brainstorm and brainstorm. I want to invite Liu Ye to come over and listen to it together. I don't know if Liu Ye has free time? Zhang Shengli invited Liu Qian.

Zhang Shengli followed Liu Qian. found that Liu Gan's thinking ability was not comparable to him at all, so after discussing this kind of major event, it would be better to let Liu Ye make the decision, and there would be no pressure on him to implement it.

"There's time." Liu Qian stood up, put away the handheld computer, and went downstairs with Zhang Shengli.

After a big battle with the corpse tide, Zhang Shengli felt that the point of repairing the ditch around the prison was not very great, and if the digging was too wide and too deep, too much labor would be required. If the digging is too shallow and too narrow, it will not have much effect, so I gave up this plan.

As the leader of the engineering construction team, Zhang Shengli decided to hold a plenary meeting to brainstorm and listen to the opinions of all team members to discuss how to strengthen the prison's defenses. The slaves who had been captured and had not yet been reformed also attended the meeting, giving them a sense of collective honor and more conducive to their reform.

"I think Brother Shengli's original idea is very good, just dig a moat! Dig every day. One day, they dug a deep canyon all around, and zombies fell into it and couldn't climb up. Then pour gasoline into it and burn it, and no matter how many corpses there are, they will burn it out. Zhang Hua expressed his opinion.

"I won't discuss this for now, let's think of something more practical, concise and effective." Zhang Shengli waved his hand.

"Can you build the prison walls a little higher? If you can't, build another wall on the perimeter, and two walls will definitely be stronger than one. Han Guangming also suggested a few words.

"This is very difficult, I am afraid that it will have to be guided by construction experts, and the amount of work will be very large, not much less than digging a moat." Zhang Shengli shook his head after thinking about it.

"What about digging tunnels? A tunnel was dug to a place a few kilometers away, such as a reserve warehouse, and in case the prison was besieged by a wave of corpses, we could slip through the tunnels, and when there was no one in the prison, the corpses would disperse on their own, and then we would come back from the tunnels. Zhao Meng contributed his thoughts.

"This is good, you can consider it, but the amount of work is still very large." Zhang Shengli nodded.

"I have a good idea, I don't know if I can say ......," a newly joined team member surnamed Lan raised his hand after the latest transformation was successful.

"Speak, but speak." Zhang Shengli encouraged the new team members.

"That...... You can arrange a treadmill around the prison, and the zombies can only stand still after reaching the wall, and they can't climb up. The Lan team member hesitated for a moment before saying his suggestion.

The scene was silent.

"It's a good idea, but it's not realistic...... We don't have that many treadmills...... Let's continue to use our imaginations. Zhang Shengli thought about it and praised the team member surnamed Lan a few words, so as not to dampen everyone's enthusiasm for brainstorming.

"I have a suggestion, you can refer to it." Liu Qian saw that no one spoke, so he opened his mouth.

"Master Liu, please speak!" Zhang Shengli couldn't help but be overjoyed, what Liu Ye said must be a very practical and effective suggestion, which can help him solve big problems.

"I've been walking around the neighborhood these days, there is a large area of mountains and forests to the west of the prison, and the trees in it are growing very luxuriantly, so why don't we organize a cutting team to cut down those trees, and build a circle of horse-blocking stakes around the periphery of the high wall, some of the wood is sharpened in front of the stakes and erected obliquely, and a small number of zombies come and are directly strung on it, unable to get close to the high wall."

"In addition, you can put more logs on the ground between the horse rejection pile and the high wall, the ground is slippery and frozen in winter, and after the corpse tide breaks through the stake defense and rushes through the stake, it is easy to fall down when stepping on the log, and the treadmill principle of the team member just now is more similar, and the human ladder erected by the zombies is not as strong as it was original."

"In addition, once the wood is poured with gasoline and burns, a wide sea of fire will form between the horse stakes and the high walls, and the tide of corpses of 10,000 or 20,000 will no longer pose much of a threat to the prison. I just thought of these temporarily, casually speaking, it may not be feasible, your construction team should decide after comprehensive consideration. Liu Qian ended his speech.

"Master Liu! Thinking far-sightedly, we really can't catch up! ”

"Yes! This method is good, just follow what Liu Ye said! ”

"Liu Ye is wise and martial, omniscient, omniscient......"

"Liu Ye is the reincarnation of Zhuge Kongming!"

"Master Liu, I love you!"

"Master Liu, you are my idol, cute and cute......"

“……”

Listening to the sound of the next row of horses, and the expressions of some female team members, Liu Qian decided not to participate in this kind of meeting in the future, and the original brainstorming became his word again.

This kind of construction, internal affairs, let Zhang Shengli and them brainstorm, Liu Qian didn't think that his idea was so subtle, he put it forward, just to give them a reference. (To be continued......)