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倒生胚珠
释义
倒生胚珠
Encyclopedia
理学
〔植物形态与结构〕
释
anatropous ovule
倒生胚珠
在发育过程中倒转180°,使得珠柄和珠孔非常接近,而合点在相对的一端的胚珠。被子植物中最普遍的胚珠类型。
Biology
anatropous ovule
倒生胚珠
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excitant
excitation
excitation and deexcitation
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excitation by electron impact
excitation conduction
excitation-contraction coupling
excitation cross-section
excitation current control
excitation curve
excitation energy
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excitation function
excitation labeling
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excitation light source
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excitation of hydrogenerator
excitation of synchronous motor
excitation of turbulence
excitation potential
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excitation system
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