The fluorin gypsum is the byproduct in producing fluorid, which is of slow hydratation, poor concreting and pollution environment.
氟石膏是氟化物生产过程中的副产品，其水化缓慢、凝结能力差，且污染环境。
The fluorin gypsum is the byproduct in producing fluorid, which is of slow hydratation, poor concreting and pollution environment.
氟石膏是氟化物生产过程中的副产品，其水化缓慢、凝结能力差，且污染环境。
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