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Please work out the total amount of crude material in this project.
请你计算出这个项目投料的总数。
youdao
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Phenothiazine is an important fine chemical product and crude material.
吩噻嗪是一种重要的精细化工产品和原料。
youdao
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Phenothiazine is an important fine chemical product and crude material.
吩噻嗪是一种重要的精细化工产品和原料。
youdao