Superfund, the hazardous material cleanup group, does not seem to work well. 有害物質(zhì)清除組織超級基金似乎沒(méi)有起到什么作用。
Those who illegally dump hazardous substances should be held accountable. 非法傾倒有害物質(zhì)者應該承擔責任。
Lead is currently on its list of hazardous materials. 鉛目前已被列為危險材料。
Several kinds of models and characteristics of leakage and diffusion of hazardous gas are summarized and described. 總結歸納了描述氣態(tài)危險物質(zhì)泄漏擴散過(guò)程的多種現有模型及其特點(diǎn)。
