压缩

• There are two kinds of elastic waves in solids a compressional wave and a transverse wave .
  在固体中有两类弹性波，一类是压缩波，另一类是横波。
• The development of high-pressure reforming was a major contributor to reducing the compression load .
  高压转化对减少压缩的负荷是一个主要的贡献。
• The crowning task would be to condense these voluminous still-accumulating materials .
  要完成任务，还得把汗牛充栋的，仍在不断增加的材料进行压缩。
• Ammonia is normally shipped and stored in the liquid form, obtained by compressing and cooling the gas .
  氨通常是通过压缩和冷冻后进行运输和贮存的。
• In the car engine, air mixed with petrol is taken into a confined space and compressed .
  在汽车发动机中，与油混合的空气被引入一个封闭的空间并被压缩。
• If we are dealing with incompressible elastic solids, some simplifications can be achieved .
  如果所处理的是不可压缩的弹性固体，我们就可以完成某些简化。
• The attractive force increases as a gas is compressed and its molecules are brought closer together .
  随着气体被压缩，气体分子之间的距离缩小，引力增大。
• You reduce the volume which a gas occupies to one-third, then the pressure increases three times .
  假如把气体占有的体积压缩到13，气体的压力便会增大3倍。
• Since the glass is in compression, it cannot extend appreciably beyond the ends of the eyelet .
  因为玻璃处于压缩状态，玻璃不能明显地延伸到超过座孔的端面。
• Material falling toward the surface of a star will become compressed and heated, shock waves may form .
  落到星体表面的物质会被压缩和加热，可以形成冲击波。