1.
Materials through which no radiation is propagated are called opaque.
辐射线不能透过的物质叫不透明体。
2.
Impermeable by gas.
不透气的气体不能透过去的
3.
Likely to cause choking.
可能使人透不过气来的
4.
It could not pass through material impervious to water such as mica.
它不能通过云母这样的不透水的物质。
5.
Transmitting light but causing sufficient diffusion to prevent perception of distinct images.
半透明的能透过光但却引起大量的散射，从而不能看到清楚的影像
6.
Pore and Permeation of Composite of Stainless Steel Powders and Silkscreen
不锈钢粉末与丝网复合的孔隙和透过性能
7.
the quality of being opaque to a degree; the degree to which something reduces the passage of light.
在很大的程度上不能透过光线；物体减少能通过自身光线的程度。
8.
transport of a substance across a cell membrane by diffusion; expenditure of energy is not required.
物质通过扩散而透过细胞膜进行传输的过程；不需要消耗能量。
9.
Emergent light is no longer continuous.
透过的光不再是连续的。
10.
Impenetrable by light; neither transparent nor translucent.
不透光的不能被光线穿透的；既不透明也不是半透明的
11.
The sun's rays could not wedge their way through the barrage of foliage.
阳光透不过树叶的屏障。
12.
Opacity: Degree of obstruction to transmission or reflection of light.
不透明度:阻碍光线透过的程度。
13.
To saturate with water and make soggy or unusable.
吸取过量用水浸透使湿润或不能用
14.
passing light without diffusion or distortion.
能透过光线而且不会发生漫射或扭曲。
15.
a transparent filter that reduces the light (or some wavelengths of the light) passing through it.
能够减少光的通过量的透明过滤器。
16.
the concentration of a colloidal solution whose colloid will not pass through a semipermeable membrane; solution is placed in a bag of the membrane and the solvent is evaporated off.
一种胶状溶剂的浓缩它的胶体将不能穿过半透明的隔膜。
17.
It could be a simple sprain. But I think to be on the safe side we ought to have it X-rayed.
这可能是单纯的扭伤。不过我看为保险起见我们应该给它透视一下。
18.
But rainwater cannot penetrate their cottages.
不过雨水无法渗透过他们的茅草房。