“contraction”的概念、定义、翻译、参考文献-科学参考

单词	contraction
释义	contraction [kǝn`trak·shǝn] ^{GRAPHIC ARTS} A microfilm defect in the form of a compressed image that occurs when the film speed is reduced as the document passes through a rotary microfilmer. ^MATHEMATICS 1. A continuous function of a metric space to itself which moves each pair of points closer together. 2. The operation of setting one of the contravariant indices of a tensor equal to one of the covariant indices and summing over this index, yielding a tensor of order two less than that of the original tensor. ^MECHANICS The action or process of becoming smaller or pressed together, as a gas on cooling. ^PHYSIOLOGY Shortening of the fibers of muscle tissue.
随便看	check bit check character check cracks check cross check dam check digit brood brood capsule brood parasitism brood pouch brookite Brooks variable inductometer brooming broomy flow Brotulidae brouter Brouwer's theorem brown acid brown algae Brown and Sharpe gage brown bast brown blight brown blotch brown canker brown clay

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