length contraction[物] 长度收缩;长度缩短;长度收缩效应
contraction crack收缩裂缝;收缩破裂;缩裂
contraction ratio[航] 收缩比;压缩比;收缩比例
end contraction侧方收缩;尾端收缩
double contraction[冶] 双重收缩;双重收缩英语;双倍收缩率
lorentz contraction洛伦兹收缩;劳伦兹收缩;长度收缩
contraction distortion收缩变形;收缩畸变;翻译
isobaric contraction等压性收缩
solidification contraction凝固收缩;固化收缩作用
Generally, Ca2+ is a key factor for muscle contraction and diastole.
一般认为,Ca2+是引起肌肉收缩和舒张的关键。
参考来源 - Na～+，K～+By introducting two types of vertex contractions in a graph, called α2n+1-contraction and β2n-contraction respectively, we introduce two new classes of graphs, called （2n+1）-contractible graphs and 2n-pairs contractible graphs.
1．通过引入两种图的收缩运算：α（2n+1）-收缩运算和β2n-收缩运算，定义了两类新的图类，即（2n+1）-可收缩图和2n-对可收缩图。
参考来源 - 关于同伦正则态射及其应用N-COUNT（可数名词） When a woman who is about to give birth has contractions, she experiences a very strong, painful tightening of the muscles of her womb. 宫缩
The contractions were getting stronger.
宫缩越来越强烈。
N-COUNT（可数名词） A contraction is a shortened form of a word or words. (单词的) 缩写形式
"It's" (with an apostrophe) can be used as a contraction for "it is."
“”（带撇号）是“”的缩写形式。
（） → see also contract