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pollen tube
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pollen tube
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花
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pollen tube
花粉管
花粉萌发时,由花粉内壁向外伸出形成的管状结构。通常是营养细胞(或称管细胞)进一步生长发育的结果。
Biology
pollen tube
花粉管
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lunar ascender
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lunar atmosphere
Lunar Atmosphere and Dust Environment Explorer
lunar aureole
lunar base
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Lunar-based Ultraviolet Telescope
lunar bounce
lunar calendar
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lunar circus
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Lunar Crater Observation And Sensing Satellite
Lunar Crater Observation and Sensing Satellite
lunar crust
lunar cycle
lunar day
lunar dial
lunar dichotomy
lunar diffraction
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