a frog's skin is permeable to water.
青蛙
皮肤能透水。
,具渗透
;;;
可渗透,透过;，可溶解;
;，多孔;
碍物，屏;
,恐水,患恐水,易被水沾湿;a frog's skin is permeable to water.
青蛙皮肤能透水。
permeable membranes; rock that is permeable by water.
渗透膜；被水渗透岩层
Aren't all membranes semi-permeable? That is, the whole point of a membrane is that it lets some things through and others not. Membranes by definition are permselective or semi-permeable barriers.
也就是说他认为所有膜都是半透，从定义来看就是选择透过或者半透结构。
The amplitude of the head fluctuation decreases with the storativity and leakage of both semi-permeable layers and increases with the leakance of the silt-layer.
分析表明，承压含水层中地下水水头波幅是上、下弱透水层贮水率和越流系数减函数，是淤泥层相对透水系数增函数；
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