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sperm(plant)
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sperm(plant)
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理学
精子(植物)
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sperm(plant)
精子(植物)
植物有性生殖过程中的雄配子。在孢子植物中由精子器产生的单倍体生殖细胞,在许多裸子植物和所有被子植物中由雄配子体中的生殖细胞经过有丝分裂产生。
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iron based cast superalloy
iron based catalyst
Iron based powder metallurgy material with high density
iron based superconductor
iron-based superconductor
iron bath gas making
iron binding globulin
iron bird test of flight control system
iron bridge
Ironbridge Gorge
Iron Cannons of the Hongwu Reign,Ming Dynasty
iron carbide
iron-carbon phase diagram
iron carbonyl
Iron Casting Site at Zhaoxiancun
Iron-casting Workshop of Han Dynasty at Taicheng
iron chloride
iron chlorides
iron-chromium (flow) battery
iron-chromium redox flow battery
iron-cobalt soft magnetic alloys
iron coin
Iron Column of the Nanzhao State
iron core coil
iron credentials
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