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basic raw materials for organic industry
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basic raw materials for organic industry
Encyclopedia
工学
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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police pursuit tactics
police-related internet public opinion
police resource scheduling
police restriction belt
police safeguards
police safety culture
police science and technology informatization
Police Scotland
police sign
police's law-abidingness
police social supervision
police specialization movement
police sports
Police Story
Police Story series
police sub-stations and police booths
police-tax department cooperation
police technology
police testifies in the courtroom
police training
police training programme
police uniform
police vehicles
police vessels
police vocational values
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