English ⇄ Chinese

hazardous substance
hydroel.st.	危险物质
interntl.trade.	危险物品
patents.	有害物质
tech.	有害性物质; 危险物质
hazardous substance Any material that poses a threat to human health and/or the environment. Typical hazardous substances are toxic, corrosive, ignitable, explosive, or chemically reactive
environ.	有害危险物质 (指能对人类健康或环境产生威胁的物质，典型的有害物质通常是有毒、具腐蚀性、易燃、易爆炸或具化学反应性的物品。)

hazardous substance: 9 phrases in 3 subjects

China	2
Environment	1
Technology	6