contraction

英 [kənˈtrækʃn]

美 [kənˈtrækʃn]

n. 收缩; 缩小; (肌肉的)收缩，挛缩; (尤指分娩时的)子宫收缩; 词的缩约形式

Collins.1 / BNC.6570 / COCA.8686

牛津词典

noun

收缩；缩小
the process of becoming smaller
1. the expansion and contraction of the metal
  金属的膨胀与收缩
2. The sudden contraction of the markets left them with a lot of unwanted stock.
  股票市场骤然收缩，让他们剩下了许多无人要的股票。
（肌肉的）收缩，挛缩；（尤指分娩时的）子宫收缩
a sudden and painful contracting of muscles, especially of the muscles around a woman's womb that happen when she is giving birth to a child
1. The contractions started coming every five minutes.
  子宫开始每隔五分钟收缩一次。
词的缩约形式
a short form of a word
1. ‘He's’ may be a contraction of ‘he is’ or ‘he has’.
  he's可以是he is或he has的缩约形式。

(分娩时的)子宫收缩，宫缩
When a woman who is about to give birth hascontractions, she experiences a very strong, painful tightening of the muscles of her womb.
N-COUNT (词的)缩约形式
Acontractionis a shortened form of a word or words.
1. 'It's' (with an apostrophe) should be used only as a contraction for 'it is'.
  it's (带撇号)只能用作 it is 的缩约形式。
See also:contract

noun

the act of decreasing (something) in size or volume or quantity or scope
(physiology) a shortening or tensing of a part or organ (especially of a muscle or muscle fiber)
Synonym:muscular contractionmuscle contraction
a word formed from two or more words by omitting or combining some sounds
1. `won't' is a contraction of `will not'
2. `o'clock' is a contraction of `of the clock'
the process or result of becoming smaller or pressed together
1. the contraction of a gas on cooling
Synonym:compressioncondensation

During a recession, ideally, public demand rises to offset contraction in the private sector.
在经济衰退中，理想情况是通过公共需求的增长，来弥补私人需求的萎缩。
HJA-6 with moderate activity and contraction.
HJA-6具有适中的活性和收缩性。
Steel and concrete have almost the same rate of contraction and expansion.
钢和混凝土有几乎相同的收缩率和膨胀率。
The contraction of this muscle causes the lower arm to be raised.
这根肌肉的收缩使下臂抬起来。
These rhythmic waves of muscular relaxation and contraction are called peristalsis.
这种肌肉舒张和收缩的有节律波动称为蠕动。
A compound that is found in the muscle tissue of vertebrates; supplies energy for muscle contraction.
脊椎动物肌肉组织中的一种化合物，提供肌肉收缩的能量。
The alternate contraction and relaxation of muscles.
肌肉的交替收缩和松弛。
In a contraction, positive work is done on the system.
在压缩过程中，对体系作正功。
The molecule structures of cell membrane and muscle cell; The principle of muscle contraction.
【熟悉】细胞膜和肌细胞的分子结构；肌肉收缩的原理。
First, the CNS must produce a rhythm for the periodic cycle of contraction and relaxation of respiratory muscles.
首先，中枢神经必须赋予呼吸肌的周期性收缩和放松一种节奏。