“polar nucleus”的概念、定义、翻译、参考文献-科学参考

单词	polar nucleus
释义	polar nucleus [`pō·lǝr `nü·klē·ǝs] ^BOTANY One of the two nuclei in the center of the embryo sac of a seed plant which fuse to form the endosperm nucleus.
随便看	distributing frame distributing point distributing roller distributing terminal assembly distribution distribution amplifier distribution box distribution cable distribution center distribution coefficient distribution control distribution curve distribution deck distribution factor distribution frame distribution-free method distribution function distribution graph distribution law distribution photometer distribution ratio distribution reservoir distribution substation distribution switchboard distribution system

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