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在华氏70度或70度以下的冷水中求生将取决于很多因素,水温是其中最重要的一项。人体脂肪多少便在海水中维持生命的时间长短也有所不乏。人体脂肪愈多,绝热作用也愈大。脂肪丰富者在水中被冷却的速度较瘦者慢得多。在水中多做动作也会影响维持生命的时间。游泳或踩水使人体加速冷却较头部抬出水面人体静止在水中者要快35％。因为水的传热性能快于空气数倍,而且半数的热量是从头部失散的,所以一直将头抬起于水面上是件重要的事。其他热量失散较多之处是颈部与腹股沟处。在海水中,如能穿戴着“人员起浮装置”
Survival in cold water at 70 degrees Fahrenheit or below will depend on many factors, and water temperature is one of the most important. How much body fat will be in the sea water to maintain the length of life there is also no shortage of people. The more body fat, the greater the role of adiabatic. Fat-rich are chilled in water more slowly than lean people. Doing more exercises in the water can also affect the duration of your life. Swim or step on the water to accelerate the cooling of the body than the head carried out of the water, the body still in the water who are 35% faster. Because water heats up several times faster than air and half of the heat is lost from the head, it is important to keep the head on the water. Other heat is more scattered at the neck and groin. In the sea, if we can wear the “personnel lifting device”