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embryos,protoplanet
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embryos,protoplanet
Encyclopedia
理学
〔行星形成〕
释
embryos,protoplanet
行星胚胎
在太阳星云凝聚吸积后期,星子相互碰撞、聚集成最后百个左右的天体。又称原行星。
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underwater acoustic sensing technology
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underwater energy-saving management technology
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