... hazardous chemicals 危险的化学药品 hazardous compound 有害化合物 hazardous particle 有害微粒 ...
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Hazardous volatile organic compound 挥发性有害有机物
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The high walls of the compound and the warm temperatures had caused the Black Hawk to descend inside its own rotor wash-a hazardous aerodynamic situation known as "settling with power."
庭院的高墙和较高的温度导致这架黑鹰在其自身的旋翼洗流中下坠。旋翼洗流是一种“具有动力的下坠”，这是种很危险的空气动力学状态。
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