英语词汇“Projective cover”是什么意思，翻译、用法及简单造句-英汉双解词典-英汉网

单词	Projective cover
释义	Projective cover 英语百科 Projective cover In the branch of abstract mathematics called category theory, a projective cover of an object X is in a sense the best approximation of X by a projective object P. Projective covers are the dual of injective envelopes.
随便看	photosynthetic electron transfer的意思 photosynthetic electron transport的意思 photosynthetic electron transport system的意思 photosynthetic energy utilization efficiency coefficient的意思 photosynthetic enzyme的意思 photosynthetic filament的意思 photosynthetic heterotrophs的意思 photosynthetic intensity的意思 photosynthetic lamellae的意思 photosyntheticlly active radiation的意思 photosynthetic membrane的意思 photosynthetic microorganism的意思 photosynthetic nitrogenuse efficiency的意思 photosynthetic number的意思 photosynthetic organ的意思 photosynthetic organism的意思 photosynthetic oxygenation的意思 photosynthetic parenchyma的意思 photosynthetic part的意思 photosynthetic phosphorylation的意思 photosynthetic physiology的意思 Photosynthetic pigment的意思 Photosynthetic Pigment Protein Complexes,Bacterial的意思 photosynthetic pond的意思 photosynthetic potential的意思

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