oil war石油战争oiln.油；油画颜料；奉承话v.涂油；溶化；加油Oil tanker structures油轮结构oil and gas gathering油气集输oil vapour dispersion油气扩散Oil swims on water.油浮在水面上。oil leakage of engine机体组漏油Oil well logging data测井数据oil absorption number吸油值oil price fluctuation油价变化oil pollution control石油污染控制oil pump outlet valve油泵出油阀

1. Soot is caused by incomplete burning and makes smoke dark.
   油烟是起因于不完全燃烧而使烟变黑。
2. Working area ground greasy dirt, oil tanker and lampblack machine clean.
   工作场地地面油污，油船及油烟机的清洗。