contraction

the contraction of metal as it cools.金属冷却时的收缩

muscle contraction,肌肉收缩；肌收缩

economic contraction,经济萎缩

contraction ratio,收缩比；收缩系数

uterine contraction,子宫收缩

thermal contraction,热收缩

contraction stress,收缩应力

volume contraction,体积收缩；容积收缩；音量压缩

contraction joint,收缩接缝；收缩节理