extremely hazardous substance
... Hazardous or Poisonous Substance 有害性或毒性物质 RELEASE OF HAZARDOUS SUBSTANCE 释放危害物质 extremely hazardous substance 特别危险品 ; 极有害物质 ...
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extremely dangerous material
... 特别危险通信标记:special hazard communication marking 特别危险品:extremely dangerous material 特别危险:special hazard ...
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