水驱油机理
water flooding mechanism
water displacing oil mechanism
oil-water displacement mechanism
water-driving mechanism
water-displacing-oil mechanism
柴油机机油冷却器
diesel oil cooler
lube oil cooler for diesel engine
调剖驱油机理
mechanism of profile modification
发动机机油油槽区
engine oil sump compartment
发动机机油油路简图
engine oil flow schematic