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己烯
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己烯
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丙烯
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己烯
含六个碳原子且双键在开链分子链端部的单烯烃。结构式CH3(CH2)3CH=CH2。又称正丁基乙烯。常温常压下为无色液体,沸点为63℃,不溶于水,溶于醇、醚、苯、石油醚、氯仿,易燃,有中等毒性及一定的刺激性。是优良的聚烯烃共聚单体。
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celestial navigation
celestial navigation system
celestial object
Celestial Observation Satellite
celestial parallel
celestial perimeter parts
celestial photograph
celestial photography
celestial planisphere
celestial polar distance
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celestial pole offsets
celestial positioning with space sextant
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Celestial Reference System
celestial reference system
celestial revolution
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celestial stem and terrestrial branch
celestial system
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