英语词汇“polar nucleus”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	polar nucleus
释义	polar nucleus polar nucleus n. Either of two nuclei in the embryo sac of a flowering plant that fuse with each other and with a male gamete to form the primary endosperm nucleus. po′lar nu′cleus n. either of two female haploid nuclei, in the embryo sac of flowers, that fuse to produce a diploid nucleus. [1880–85] polar nucleus polar nucleus [′pō·lər ′nü·klē·əs] (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	generalized rytov analysis generalized scattering matrix generalized scleroderma generalized search tree generalized search trees generalized seizure generalized seizure disorder generalized seizures generalized selection combining generalized self-consistent field generalized self-consistent reaction field generalized self esteem generalized semi-markovian process algebra generalized sequential access method generalized sequential machine generalized sequential ordering problem generalized sequential probability ratio test generalized set relation algebras generalized shannon-khinchin's axiom generalized shwartzman phenomenon generalized sidelobe canceller generalized significant adiposity generalized singular value decomposition generalized sliding window algorithm generalized spectral localization by imaging

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polar nucleus