Because of their short wavelength, x-rays can pass through objects which are opaque to ordinary light . 由于X射线的波长短，它就能穿透一般光线所不能穿透的物体。
A cry, a very loud cry, as of infinite desolation, soared slowly in the opaque air . 只听一声喊叫，非常响亮的喊叫，犹如发自那无穷无尽的荒凉之中，缓缓地在不透明的空中激荡。
As soon as the contracting cloud becomes opaque to its own infrared radiation, its luminosity will drop abruptly . 一旦收缩云变得对它的红外辐射不透明时，它的光度便要急剧地降低。
Since the thermal radiation largely stopped by ordinary opaque materials, buildings and clothing can provide protection . 既然普通不透明的材料可以在很大程度上阻止住热辐射，建筑物和衣服就能起防护作用。
The president had spoken about "principles," not tactics-a comment so opaque that its precise meaning eluded me even at this writing . 总统谈的是“原则”，不是策略--这句话意义如此含混，致使此刻撰写本书的我也不明白它的确切意思。
Measurements using opaque bottles almost always reflect community respiration, including bacterial, zooplanktonic, rather than just algal respiration . 用不透明瓶测定几乎总是反映出群落呼吸，包括细菌、浮游动物，而不仅仅是藻类的呼吸。
All the opec opal in the opel is opaque 欧宝车内所有的opec的蛋白石都没有色泽。
An opaque structure used by the server 服务器使用的一种不透明结构。在每一个
How to : draw opaque and semitransparent lines >如何：绘制不透明和半透明的线条
Earthenware decorated with colorful , opaque glazes 彩釉饰有彩色、不透明釉料的陶器
