Since it's the training reef of the storm brigade, how can there be no coastal defense under the water? Moreover, the place they go is still the training room of the team.

Ye Jian didn't move any more. How did the big shark go? She followed her closely until there was a natural cave about five meters from the end of the reef.

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

Only when I went in did I know that there was another mystery. The whole cave was not formed naturally, but was built the day after tomorrow. The cave was low, and the cave was going up. Standing in the cave, I could hear the sound of the sea water, but I could not see the water pouring back.

"This is our training room. All members will come here for hypoxia test and training for a week." Open a fine steel door, big shark opens the main electric switch box, big shark beckons leaf Jane to come in, "wait for us to simulate the oxygen concentration in the high altitude area, you put on your helmet."

Pointing to a transparent helmet that looks like an astronaut's helmet, but in front of the mask there is a long training hat similar to a breathing tube, which signals Ye Jian to put on, "by reducing the oxygen in the air, first see if you have any extreme reaction to low concentration oxygen."

"But I don't think you have any problem," she said with a smile. Her data showed that she had been trained on the plateau and had no problems in all aspects of her body, like the first low concentration oxygen test.

Ye Jian's line of sight has looked around without trace It's all the auxiliary equipment she hasn't seen for hypoxia training, and she knows that she will have to enter the hypoxia training room in the future.

During the conversation, the hypoxia test has been started, just as big shark said that Ye Jian has no problem with this test. Big whale recorded one by one and said to big shark, "the next test can be carried out."

"It takes five minutes for the frogman to be fully anoxic underwater. If there is any discomfort, we will make gestures directly, and we will also follow the instructions on the instrument to ensure your safety."

Over there, the whale has tied two auxiliary training instruments dedicated to anti ischemia and anti hypoxia to the left and right arms of the leaf blade, and then pressurized the instrument to 220 mm Hg to make the upper limb suffer transient ischemia for several minutes.

As the respirator is removed, the helmeted blade enters a completely vacuum environment, without any transition, and directly enters the anaerobic environment.

In the past two and a half minutes, Ye Jian's face is still processing normally for the time being. She sits next to the display connected with the instrument to record various parameters. The whale's line of sight is not blinking. She looks at the values that are always green, and then looks at the past time Three minutes!

It's not Ye Jian's anaerobic test for three minutes, but her data has changed, but it hasn't reached the limit yet!

Normal people have no oxygen for at most 1-2 minutes, but she has been for three minutes Wait, wait, if it's still like this in four minutes, then she's the best in the selection!

Someone pushed the door in and walked to the big whale, who was solemn and excited. "How many minutes?"

It's the voice of Li Xinian.

"In three and a half minutes, the parameters began to change." Although the whale was speaking under pressure, it was not hard to hear the excitement in his words. "Demon king, I bet Ye Jian can hold on for more than four minutes!

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