oil residue meaning in Chinese

残油
残渣油
滑油残渣
油残留物
油渣

Oily substances are confined to oil residue , oily water and sludge
残余油类物质种类系指残油、含油污水和油泥。
Flanges for internationally unified connections for the disposal of oil residues
油残渣处理用的国际统一标准的连接法兰
Oil residue recuperation
残油回收
Inspection methods and assessment rules for determination of oil residue on surfaces of an air separation plant
空分设备表面残油量的检查方法和评定规则