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Earth sciences
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合作者
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世界科学工作者联合会
World Federation of Scientific Workers
〔美国〕化学工作者联合会
Chemical Workers Union
国际化学工作者联合会
International Chemical Worker's Union
国际化学工作者联合会
International Chemical Workers Union
国际土地测量工作者联合会
International Federation of Land Surveyors
国际电气、无线电及机械工作者联合会
International Union of Electrical, Radio & Machine Workers
国际石油工作者联合会
Oil Workers International Union
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