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

复数：contractions　

TOEFLTEM4TEM8医学

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。

柯林斯词典

• (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

英英释义

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

双语例句

• 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。
• METHODS: Action potentials and force of contraction were studied with conventional techniques in guinea-pig papillary muscles.
  使用传统方法测量了豚鼠乳头肌的动作电位和收缩力。
• Experiments have proved that when the arteriole produce durative contraction, skeletal muscle cramps occur, numbness, etc.
  实验证明，当小动脉发生持续性收缩时，骨胳肌发生痉挛跳动，肢体麻木等现象。
• In a contraction, positive work is done on the system.
  在压缩过程中，对体系作正功。
• 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。
• 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。
• Objective To observe the relationship between duration time of isometric contraction and blood pressure.
  目的分析肌肉等长收缩持续时间与人体血压变化之间的关系。
• And the optimal combination of process parameters of minimum contraction is obtained.
  并获取了使得收缩最小的最优工艺参数组合。
• 'It's' ( with an apostrophe) should be used only as a contraction for 'it is'.
  it's（带撇号）只能用作itis的缩约形式。
• I step up the breathing rate& timing the contraction and relaxation of chest muscles.
  我增加呼吸率&调节胸部肌肉的收缩和舒张的速率。