... projective coordinates 射影坐标 projective cover 射影覆盖 projective curvature tensor 射影曲率张量 ...
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m projective cover m投射复盖
foliage projective cover 叶片投影盖度
a direct-projective cover 直投射复盖
projective cover of a module 模的投射复盖
以上来源于: WordNet
This peper introduces the concept of direct-projective covers, and prove that a ring R is left perfect if and only if every left R-module(flat left R-module) has a direct-projective cover;
本文引入直投射覆盖的概念，证明了环R为左完全环当且仅当每一个左R-模（平坦左R-模）具有直投射覆盖；
The model was developed to simulate seasonal and annual growth, foliage projective cover (FPC), and evaporative coefficient in the Ordos plateau, where serious desertification happened recently.
该模型用于模拟发生严重荒漠化的鄂尔多斯高原植物群落的季节及年生长、叶片投影盖度、蒸发系数。
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