The mechanism of water retention and thixotropy of fresh mortar with bentonite was studied. 探讨了膨润土对于砂浆增稠保水作用的机理和触变性能机理。
In order to moisturize the skin, one has to put water into the stratum corneum and keep it there. 为了让皮肤保持湿润，就必须先为角质层补充水分，然后想办法把水分保持在那里。
If a person gets low on fluid, the body compensates by bringing fluid back out of the kidneys and by slowing the loss of water through the skin, Valtin said. 他称，如果人体摄入的水分较少，身体会通过从流出肾脏的液体中回收部分水分和降低皮肤散失水分的速度，使身体的水分保持在平衡水平上。
