双井抽油机机架 the frame of double-well pumping unit
游梁式抽油机抽油的井 beam pumping well
直线电机抽油机 linear motor pumping unit
柴油发动机机油油位 deo oil level
柴油机机油 diesel engine oils; diesel engine oil
柴油机机油冷却器 diesel oil cooler; lube oil cooler for diesel engine
铲运机发动机机油油面 scraper engine oil level
船用柴油机机架 Marine diesel engine frame
船用柴油机机油 marine diesel oil
发动机机油油槽 engine oil sump
发动机机油油槽区 engine oil sump compartment
发动机机油油尺 engine oil dipstick
发动机机油油底壳 engine oil pan
发动机机油油底壳加热器 engine oil pan heater
发动机机油油底壳组件 engine oil pan group
发动机机油油路简图 engine oil flow schematic
发动机机油油位 engine oil level
发动机机油油位表 engine oil level gauge
发动机机油油位检查 engine oil level check