立式金属罐和流量计都是液体石油产品交接计量的器具。

Both the vertical metal tank and flow meter are used as a means to measure liquid oil products at delivery.

youdao

立式金属罐和流量计都是液体石油产品交接计量的器具。

Both the vertical metal tank and flow meter are used as a means to measure liquid oil products at delivery.

youdao