Restriction of Hazardous Substance 危害物质禁用指令 ; 有害物质的限制 ; 限制危险物质 ; 限制有害物质 hazardous substance mark 危险品包装标贴 .
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科学家们正在研究发明矿物燃料的替代品；法律也制定了对有害物质排放量的限制条款；木材公司也正在进行合理化伐木等。
Science is inventing alternatives to fossil fuels; laws have been enacted to control dangerous emissions; timber companies are practicing responsible logging, and so on.
欧洲的有害物质限制(RoHS)指令限定了在欧盟国家出售的新的电子产品中使用许多有毒原料。
In Europe the Restriction of Hazardous Substances (RoHS) directive limits the use of many toxic materials in new electronic products sold in the European Union.
商业运输检查员检查商业车辆，以确保符合法规负荷限制，有害物质的运输和公共安全。
Commercial transport inspectors inspect commercial vehicles to ensure compliance with regulations governing load restrictions, the transportation of hazardous materials and public safety.
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