Ventilation: positive downdraft exhaust ventilation should be provided to maintain vapor concentration below TLV.通风: 为了使气体聚集程度维持在阀极限值之下,应提供通畅的向下棋流排气通风设施.Beijing Cherokee engine uses Cart YFA carburetor which is single ba...
The agency has been vilified by some doctors for being unnecessarily slow to approve life-saving drugs.该机构因对救生药物的审批速度太慢而备受一些医生的诟病。The agency has been vilified by some doctors for being unnecessarily slow to approve life-...
Some redistribution of income can help to keep the worse off out of poverty.某种形式的收入再分配可以帮助穷人脱贫。The most direct approach to income redistribution is to levy progressive taxes.收入再分配的最直接的方法就是推行累进税.Sports motions can cause t...