Since it is the training of the Storm Brigade, how can there be no coastal defense under the reef, and besides, the place where they go is still the training room of the team.

Ye Jian didn't move again, how did the big shark go, she followed closely behind, until she was about five meters away from the end of the reef, and there was a natural cave before stopping.

The big shark stepped on the reef full of snail shells first, followed by Ye Jian, and then walked along the cave to the inside, a bit like walking into the hinterland of the entire reef island.

When you walk in, you can know that there is a mystery inside, the whole cave is not naturally formed, but built the day after tomorrow, the entrance of the cave is low, and the cave is going up, standing in the hole, you can hear the sound of the sea, but you don't see the half of the seawater pouring in.

"It's a training room for us, and all the members come here for hypoxia testing and training during the week of training." Opening a stainless steel door, the big shark opened the main power switch box, and the big shark motioned for Ye Jian to come in, "Wait for us to simulate the oxygen concentration in the high-altitude area, you put on the helmet." ”

Pointing to a transparent helmet that looked a bit like that worn by an astronaut, but there was a long training cap similar to a breathing tube in front of the mask and motioned for Ye Jian to put it on, "By lowering the oxygen in the air, let's see if you have any extreme reactions to low concentrations of oxygen." ”

After speaking, the big shark smiled and said: "But I think you have no problem" Her information shows that she has trained on the plateau, and there is no problem in all aspects of her body, such as the first low-concentration oxygen test.

Ye Jian's gaze was no longer traced, and he looked around,...... It was full of auxiliary equipment that she had never seen for hypoxia resistance exercises, and she knew that she would inevitably enter this hypoxia training room in the future.

The hypoxia test has already begun while speaking, as the big shark said Ye Jian really has no problem with this test, the big whale recorded them one by one, and said to the big shark: "You can carry out the next test." ”

The big shark bowed his head and said solemnly to Ye Jian, whose face was as usual: "The frogman needs to be completely deprived of oxygen underwater for five minutes to be qualified, and if there is any discomfort, he will gesture directly, and we will also ensure your safety according to the prompts on the instrument." ”

Over there, the big whale had already taken two auxiliary exercise instruments dedicated to ischemia and hypoxia resistance and tied them to Ye Jian's left and right arms, and then pressurized the instruments to 220 mm Hg to make the upper limbs appear transient ischemia for a few minutes.

As the breathing mask was removed, Ye Jian, who was wearing a helmet, entered a completely vacuum environment, without a transition, and directly entered the oxygen-free environment.

Two and a half minutes have passed, Ye Jian's face is still normal for the time being, sitting next to the monitor connected to the instrument to record various parameters, the big whale's eyes are staring for a moment, looking at those values that have been displayed green, and then looking at the past time...... It's been three minutes!

It's not that Ye Jian has been anaerobic for three minutes, but that although her data has changed, it has not yet reached the limit!

Normal people are in an anaerobic state for 1-2 minutes at most, but she has been in it for three minutes,...... Wait, wait, if it's still the case at four minutes, then she's the best of the selected soldiers!

Someone pushed the door in and walked up to the big whale with a solemn expression and faintly excited face, "How many minutes?" ”

It's the voice of Li Jinnian.

"It was only after three and a half minutes that the parameters began to change." Although the big whale spoke in a suppressed voice, it was not difficult to hear the excitement in his words, "Demon King, I bet, Ye Jian will definitely be able to hold on for more than four minutes!"