Lieutenant Garon was a majestic man on the football pitch and an idol in the Navy, but once in the water, he was far behind.

All the while, Lieutenant Garon's training in the C platoon was not satisfactory.

He was one of the hardest working in his class, but his training performance was far from proportional to the hardship he put in.

People are almost thirty, and their physical fitness is naturally not as good as other lively young men at work.

At the age of 25, if the body function is according to the laws of nature, it is like the ballistics of a bullet, reaching the highest point, and then it will decline.

Lieutenant Garon is like that.

He came here for his ideals, for the honor of his family, and when others dropped out, he gritted his teeth and persevered, but the conditions were limited, and his grades were not too good.

The most unfortunate thing is his identity as the center forward of the once brilliant Navy football team, which is not a big celebrity, and he is also an acquaintance with the instructors of the team.

According to the strange rules of the SAS training team, he was the one who was punished the most.

This time he landed last.

By the time he found the marker and was about to float, the rest of his teammates around him were already in the water.

As Garon's partner, although the two of them did not carry out cooperative training in this subject, they went to the water and handed in the markers, and solemnly suddenly noticed that there was no Lieutenant Garon in the head on the water.

"Did you see Garon just now?"

Solemnly still asked Kassim, who was next to him, heartily.

Qasim shook his head and said, "I didn't see it, I took the marker and floated up, I didn't notice him." ”

The water shook restlessly, floating majestically on the water, and there was a vague feeling that something was wrong.

He wanted to dive down again and look for Lieutenant Garon.

But thinking that there are still three instructors at the bottom of the sea, it should be fine.

Counting the other teammates on the sea, a total of 17 people have returned, that is, only Garon has not returned.

Still relieved, he took a breath and planned to go into the water to take a look.

Unexpectedly, as soon as he lowered his head, he saw Garon rushing up from the bottom of the sea like a flying fish and directly surfaced.

"Whew-"

As soon as he reached the surface, Garon opened his mouth and breathed wildly as if he were drowning.

With the mask covering his nostrils and eyes, he felt he wasn't breathing well enough and took it off.

"Are you alright? Garon! Majestine swam to his side and held his armpit with one hand.

This guy looks really scary, that mouth is like the mouth of a catfish, and you can see the uvula on the soft palate in the mouth.

"It's okay...... It's okay......"

It took a while for Garon to recover.

Swam to the dinghy, handed in the markers, then climbed onto the boat and lay down directly on the floor.

Majest also got on board, and suddenly noticed that Garon's eyes had turned blood-red.

"Garon! Your eyes are not right! ”

"Yes...... Is it? Garon swallowed, he couldn't see his eyes, so he nervously asked Solemn, "What's wrong with my eyes?" ”

Free diving, decompression symptoms may also occur.

Solemnly passed, crouched beside him, and stretched his eyelids open.

Garon's first pair of eyes were red in the whites of the eyes, and it was like having pink eye as a child, or wearing red contact lenses or something like that.

"Instructor Ahmed!"

Solemnly feel that I should report quickly.

Because there is a military doctor on the dock not far away, if it is decompression, you can immediately do some treatment.

The light dive depth of 35 meters is not very high, and it is reasonable not to have any serious consequences.

Ahmed also noticed what was happening behind him.

When he came over to take a look, he didn't care about waiting for the others, and shouted to the students on a rubber boat next door: "When your instructor comes back, you can go back to the dock by yourself, I have to rush back!" ”

The trainees on the rubber boat on the opposite side could probably guess what was going on, and they all nodded violently with serious faces, and kept stretching their necks to look at Garon's position.

XX bless!

Came to the shore, boarded the pier, and the military doctor rushed over.

After some examination, the military doctor breathed a sigh of relief and said to Garon, who was lying on the ground: "Lieutenant, count yourself lucky, if you tear off your mask earlier, I'm afraid your eyeballs will explode." ”

Then he said to Ahmed: "It's okay, take a break, don't let him participate in the next diving training, go to the medical car for a while, I will give him some treatment." ”

Garon was fine, and Zhuang Yan breathed a sigh of relief.

Fortunately, it is not a serious decompression symptom.

In fact, for the matter of decompression sickness, I can't help but solemnly not worry about my partner.

Light diving is even better, and if it's a scuba deep dive, you need to calculate the no-decompression time at different depths in the water.

Theoretically, the longer the dive time with the same breathing gas and the same depth, the greater the risk of decompression sickness, so in order to prevent decompression sickness, divers sometimes need to perform periodic decompression stops underwater to allow their bodies to excrete enough nitrogen.

As for the no-decompression time, it is actually a calculated critical time. After years of research and experiments, scientists have come up with a set of theories and formulas, through the depth of the previous dive, the duration, the number of repeated dives, the nitrogen-oxygen ratio of the breathed gas, and the surface residence time and many other factors, to get the nitrogen content level in your body, and then according to this level, calculate the time you can stay at a certain depth in the next dive, beyond this time, you must carry out the above-mentioned underwater phased decompression (decompression diving), otherwise there will be a great risk of disease.

If this length is not exceeded, such as for a general recreational dive, the diver generally only needs to control the speed of the ascent and at the end, simply do a five-metre three-point stop (no-decompression diving).

However, for long-term, high-depth underwater operations such as military diving, the no-decompression time must be strictly controlled and calculated.

If you make a mistake in the calculation, something often happens.

It's just that......

I have solemnly seen the computing ability of the students in country T.

After joining the team, he conducted a quick calculation in the school pool, but there were still 36 cadets in the entire C platoon, of which 24 were officers and soldiers of the T Army.

24 people actually calculated 24 different answers......

And the three Chinese officers and soldiers only calculated one answer, and it was still the most correct one.

Before coming to country T, Zhuang Zhuang had heard a saying that if there is anything that can crush the T side in learning, one thing can definitely be done, that is, the subject that involves rapid mental arithmetic.

Because those people don't even know how to ...... a ninety-nine multiplication table

Now, Lieutenant Garon is going to rest.

Zhuang Zhuang had to face a question - who will he partner with in the next deep dive?

"Instructor Ahmed."

He had to go and ask the bishop, Ahmed.

"Lieutenant Garon is wounded, who am I going to be with later?"

Ahmed thought for a moment and said, "You can join me!" ”