Ballast Water and Oil Tanker
offshore oil tanker oil-gas separator
Oil Tanker
燃油加油机
油船油轮
原油油船
运油船
成品油船
货油舱
货油加热
油品取样器
油船
结构设计
油轮
油罐
oil tanker transportation
setdown of an oil tanker
double blind double dummy
Double blind double dummy randomized controlled clinical trial
Double Chambers and Double Layers
Double chambers double layers floating bed
Double columns and double FIDs
Double frequency pulsation double vertical ring high gradient magnetic separator
double lift double cylinder jacquard
double -peak double -wavelength method