They may also be manufactured from non-crystalline materials such as glass, cellophane or transparent plastics . 它们也可用外晶体材料,例如玻璃、赛璐珞或透明塑料等制造。
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。
The resultant negative transparency is essentially complementary to the original scene in both tone and color . 最后得到的负性透明片,在色调和颜色方面均和原景物成互补关系。
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。
At first glance, calcite might be confused with quartz where both are clear, colorless, and "glassy" . 乍一看来,方解石可能与石英相混淆,因为两者都是透明、无色、且“呈玻璃状”的。
He abandoned the noiseless transparencies and pointed at the centre of the spreading rings like a setter . 他不再去弄那些无声的透明小生物了,却像个调节者似的指着逐渐扩散的涟漪的中心。
Koch perceived that it would be far better if one could solidify a well-tried liquid medium with some clear substance . 郭霍设想,如果能用某种透明物质将经过多次试验的培养液固化可能更好。
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。
At infrared wavelengths the region is less opaque, and cool protostars are expected to emit most of their energy in the infrared . 在红外波长范围,暗云区是较透明的,而冷的原恒星应在红外区发射其能量的大部分。