名詞 compression:

1. an increase in the density of something
   同義詞：compaction, concretion, densification
2. the process or result of becoming smaller or pressed together
   同義詞：condensation, contraction
3. encoding information while reducing the bandwidth or bits required
4. applying pressure
   同義詞：compressing

1. A physical sensation produced by compression of a part of the body.
   壓迫感身體上某一部分由壓迫而引起的生理上的感覺
2. The application of continuous force by one body on another that it is touching; compression.
   壓緊，壓縮相靠著的物體中其中一物對另一物的連續(xù)擠壓式的涂敷；

com.pres.sion

n.（名詞）

The act or process of compressing.
壓縮：壓縮的過程或行為
The state of being compressed.
濃縮：被壓縮的狀態(tài)

The process by which the working substance in a heat engine, such as the vapor mixture in the cylinder of an internal-combustion engine, is compressed.
工作物質(zhì)在熱機中的壓縮過程，如內(nèi)燃機中混合蒸汽的壓縮
The engine cycle during which this process occurs.
壓縮周期：上述機器壓縮過程的周期

【引伸】
compres.sional
adj.（形容詞）