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基本有机原料
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基本有机原料
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有机原料
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basic raw materials for organic industry
基本有机原料
大宗、均质的有机原料。主要指乙炔、三烯(乙烯、丙烯、丁二烯)、三苯(苯、甲苯、二甲苯)、甲醇8个品种及其一级非聚合物衍生物。
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satellite life prediction and assessment in orbit
satellite line
satellite line, satellite
satellite magnetic survey
satellite measurement for earth gravity field
satellite meteorology
satellite motion
satellite navigation
satellite navigation antenna
satellite navigation augmentation system
satellite navigation availability
satellite navigation based train operation control system
satellite navigation compatibility
satellite navigation continuity
satellite navigation coordinate system
satellite navigation error
satellite navigation frequency
satellite navigation industry
satellite navigation integrity
satellite navigation interoperability
satellite navigation message
satellite navigation receiver
satellite navigation signal
satellite navigation signal modulation
satellite navigation signal simulator
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