crystals

These crystals occur in nature and are the gems known as rubies.

这些晶体是天然存在的,人们称之为红宝石.

Now let us consider crystals such as diamond or sapphire.

现在让我们考虑象钻石和蓝宝石这样的晶体.

These crystals are then embedded in a plastic, and the plastic is extruded as a wire.

然后将这些晶体嵌入一块塑料，再把塑料挤压成线。

If you evaporate a little sea water on a porcelain dish ; on cooling, crystals of common salt will deposit on the sides of the dish.

如果你将少许海水放到瓷盘中蒸发,冷却后就会有普通食盐的结晶附着在盘的四周.

This advisability of deuteration is unnecessary with single crystals.

对于单晶,氘化的这种优点并不是必不可少的.

Snow crystals grow in one of two designs—platelike and columnar.

雪晶是按照两种形状中的一种——板状和圆柱形形成的。

It looks like quartz crystals sticking up out of the dark hollow.

它象石英晶体,在黑色的空间耸立着.

We tried to grow some copper sulphate crystals with our children.

我们想跟孩子们一起制作硫酸铜晶体。

It is snow and ice crystals.

这是雪和冰的结晶体.

Snowflakes are loose aggregates of ice crystals.

雪花是冰晶的松散凝结.

Microscopic needle-shaped crystals of herapathite are embedded in a plastic base.

将碘硫酸奎宁的微观针状晶体嵌于塑料片基之中.

These thin crystals transmit much of the power.

这些薄薄的晶体传导了大部分的动力。

Crystals having this property are said to be doubly refracting , or birefringent.

具有这种性质的晶体叫做双折射晶体.

The flakes seem to fuse together and produce ice crystals.

雪花好像融合在一起形成了冰晶。

Real crystals exhibit a variety of departures from this idealized structure.

真实晶体和这种理想的结构有种种出入.