Chapter 379

This is an underwater breathing apparatus designed by Shen Cong after thinking about it for half a day.

The working principle is very simple. The pulling force generated by the swing of arms and legs during swimming is transmitted through the tension rope and concentric gear set to drive the piston. The piston moves in the two air cylinders on the back to reduce the pressure in the air cylinder and supply the separated air to the inner part of the hell plant.

It is difficult to calculate Shen Cong's physical fitness nowadays. It is more and more difficult to generalize the fuzzy standard of "force of cattle". If we have to define it, it is about the quality of 40 cattle.

A few tons of force can be delivered with every move.

Even if the underwater resistance is very high, it is still difficult to limit Shen Cong's exertion. Therefore, we can use artificial power to separate the air in the water and obtain oxygen.

There are two pull oxygen tanks, one on the left and one on the left.

It belongs to detachable equipment. When it is not in use, take down the tension oxygen tank. The tension rope of arm and leg does not need to be disassembled, which is not an obstacle.

It's very convenient to use.

"Is the final result of the launching test OK?" In the evening, Shen Cong installed the tension oxygen tank, sealed the helmet mask, and jumped into the barrier lake.

When you get underwater, swim immediately.

With a little more stroke than before, the piston in the pulling oxygen tank can be driven like flying, and the pressure can be reduced and the air can be separated effectively.

When the piston moves downward, the separated gas is pressed out of the spacer and pressed into the interior of the hell plant.

After breathing, the exhaust gas is discharged from the breathing tube on the other side.

After a whole process, there is flowing water moistening air in the hell plant package. The oxygen content is not high but not low. With the oxidation efficiency of Shen Cong's blood gold state, it can completely provide Shen Cong's consumption.

It should be noted that the blood of ordinary people can only enter one fourth of the oxygen in the lungs by breathing, and the remaining three-quarters are discharged with the carbon dioxide generated.

Shen Cong's body can use at least two-thirds of the oxygen.

He takes a breath several times more efficiently than others.

"The effect is good, five minutes later, I have no sense of hypoxia, can continue to train underwater." Shen Cong is waving a big sword.

Swing your flippers with your legs, allowing your body to shuttle back and forth along the angle of the current.

Xu crab sword is constantly dancing, chopping, stabbing, blocking, picking, and various moves are used in turn. Shen Cong doesn't know much about martial arts routines. He only practiced Sanda and fighting before the end of the day. As a result, these routines are useless now. Evolutionary beasts are often tens of meters long, and even the most exquisite moves are useless.

Therefore, Shen Cong is ready to sum up his experience in hunting evolutionary beasts and optimize his fighting methods.

Create another fighting style.

What kind of method has the lethality to the evolution beast, the key practice. What's the weakness of training. Underwater is the same, how to twist the body, can better turn around, how to wield a sword, can better chop, all need to constantly explore and remember.

"Bobo..."

As night fell, the four legged dragon returned to the shore and beat the water with its big tail to remind Shen Cong that it was time to go home.

Home is King Kong.

A moment later, Shen Cong surfaced from the bottom of the lake and swam to the shore at the speed of a water motorcycle. Throw the water on the armor, open the sealed mask, and spit out a mouthful of turbid gas. Then jump to the top of the four legged dragon head, mount the Dragon saddle, and feel the Dragon gun hanging on one side.

Tap the four legged dragon's head: "go back, little four."

"Gollum Gollum." The four legged dragon immediately galloped between the mountains and rocks like walking on the ground.

In a moment, he arrived at Fuxing village where dajingang stopped. The four legged dragon hid in his big hole and went to sleep. Shen Cong continued his night work while it was still early.

Firstly, the tension oxygen tank was improved.

"The depth of the dammed lake is 11 meters, and the water pressure is not too high. After training underwater for 1 hour and 21 minutes, I felt that I was suffocated. In the sealed environment of the hell plant, there was too much exhaust gas accumulated, reaching the limit of diving."

Open the notebook, Shen Cong records the data of the pulling oxygen tank.

Within the depth of 15 meters, the pulling oxygen tank can work for at least one hour and twenty minutes with the help of hell planting.

"If we increase the capacity of the tension oxygen tank, we can at least increase the diving time of 30 minutes again. However, it is of little significance. I don't need to cross the Bohai Bay or Qiongzhou Strait, and I don't need to extend my working hours. Once you increase the capacity of the pull tank, it will increase the volume and destroy the current armor line. "

"The work efficiency can not be improved, but there are some problems with the tension system on the left side, which is more laborious than on the right side. It will affect my body balance and needs to be modified."

……

The next day, February 14.

Shen Cong gave his dolls a big cleaning early in the morning, clean and fresh.

Sun dry, put away: "clothes are not as new, people are not as old, very good."Sun in the sky, keep diving.

The improved pull oxygen tank makes Shen Cong's underwater movement more fluent.

Today, we didn't continue underwater training and began to explore the barrier lake. At present, there are five barrier lakes waiting to be explored. Shen Cong is mainly looking for pearl mussels. The first one is not, the second is still not. In the third, he finally finds pearl mussels, which are not many, like a small community.

The largest one is the size of a water tank.

After perceiving Shen Cong, the pearl clam immediately closed its shell tightly. However, in front of it, it was actually a fierce human type beast, holding a crack in the shell with both hands, and breaking the shell of pearl mussel directly with its strength.

Cut some live pearls out of it.

Let go.

The pearl mussel immediately closed its shell. In fact, it did not suffer too much damage. The living pearl is a burden to the pearl mussel. Taking it away, it is helping it.

In an hour, all the pearl mussels larger than the size of the basin were removed.

The number of packages before packing is not too much.

After that, there was no pearl mussel living in the two barrier lakes. Shen Cong had to take a few live pearls and leave the small oasis of Huanglishu.

"It's better than nothing. If I can, I should take some pearl mussels and throw them into other lakes. Without the fire debris, the food chain here is more and more fragile, and the species will die out at any time. Dongpu reservoir and Dafangying reservoir around new Hefei are very suitable places for breeding, and Hongze Lake next to Huai'an City can also be put into cultivation. "

"I don't have time to do this. I can inform the war zone to do it. Living pearl doesn't need to be kept secret. Yoghurt banyan tree and ginkgo tree need not be kept secret. When I leave, I need to let the people in the war zone take charge of it. Maybe I will come back in the future and I can harvest resources directly. "

When he was in the eastern theater, these materials belonged to Shen Cong's private property, but if he left, it would only cost the evolution beast.

It's better to leave it to human beings to manage, and even to develop breeding, and to strengthen large-scale.

Living pearls can stimulate the third development of the body. Ficus microcarpa can break the active lock of insects and other low evolution animals. After enough silver fruit is enough, it can make evolution animals dizzy and drowsy. It is an upgraded and strengthened version of active peach.

All of them have magical effects, but compared with Shen Cong, although these are strategic materials, their functions are actually somewhat chicken ribs.

It is hard to say whether the pearl milk tea made from live pearls and yoghurt banyan trees can still work on his body. Basically, most of them are fed by him to diamond ants and honey bees. These are his pets. After LV1 - pure gold age, work efficiency will be more efficient.

Silver fruit is occasionally taken out to eat, when it is to eat pistachio, because the amount of carrying is not much, also did not want to use silver fruit to hunt evolutionary animals.

"If I collect a large number of silver fruits and throw them away to lure iron eating animals, or lynx and green skin frogs, can I make these three golden beasts dizzy and drowsy? With the number of fruits of old ginkgo trees, we should be able to dazzle the golden beast

Once the idea comes out, Shen Cong can no longer restrain his own thoughts.

Black iron giant bear can be severely damaged by Li xunhuan, and then picked up beans by himself. Why can't he try to hunt the golden beast?

Thinking of this, Shen Cong can't help but increase his breathing.

"Whew, it's a little bit exciting..." (to be continued. )