compression例句
The
compression and density make this a difficult book to read, but it richly rewards the effort.
这本书内容丰富，思想深刻，很难读懂，但是非常值得一读。
This
compression is not dissipated by agents.
这一浓缩作用不会被药剂所消除。
A gas is cooled by expansion and heated by
compression.
气体膨胀时冷却,压缩时变热.