Gas cylinder should rely on pneumatics machine to compress air go in, in-house pressure is not less than every square centimeter 150 kilograms. So great atmospheric pressure, make human body cannot use the high-pressured air inside directly, must reduce atmospheric pressure, changeover becomes the aeriform intensity of pressure with lung. There is respirator in athlete mouth, the middling pressure of respirator is in charge of connective gas cylinder. Middling pressure is in charge of two end to each pressure of a gas changes unit, can change gas cylinder atmospheric pressure through two, become human body to be able to breathe.

Web swim the match shares breathless skin dive (skin dive) , surface web swim (web swim) , underwater implement swim (implement swim) 3 types, the simplest is breathless skin dive. Actually fetal when returning the be pregnant with in the amniotic fluid in uterus of the mother's body, be equal to undertaking breathless skin dive, can say who is met inherently. You want hold back to live only gas swims in underwater, that is breathless skin dive.

Wear as to the athlete swim lens, it is common natant glasses, without any mysterious place.

Look, web swim it is so difficult to be done not have! And put on crural web to swim rate is very rapid, can reach every second 4 meters. Look at the cistern bottom, scenery swiftly Er beside to disappear, feeling very cruel! (Suzhou reported Gao Jin on May 27)