oil circulation pump的意思|示意

Pre-heating oven. Oil heating for bronzing plate, constant temperature auto control, oil pump circulation.

烫金版油加热，恒温自动控制，油泵循环。

At the initial stage of development, the main oil production methods give priority to hydraulic piston pump and closed hot water circulation.

开发初期，主导开采方式主要以“水力活塞泵、闭式热水循环”等采油工艺为主。

A smoke extractor with an oil-stain cleaning device consists of a shell, a motor, an impeller, a cleaning circulation pump, an oil sump, a liquor-collecting container and an air inlet cap.

一种带油污洗涤装置的抽油烟机，由罩壳、电机、叶轮、洗涤循环泵、集油槽、集液容器和进风口封盖组成。