20.arrange to supply us with 5 drums of lubricating oil. Please.

请安排供应我们5桶润滑油。

It was sold in grocery stores and door-to-door. In the 1880's refiners learned how to make other petroleum products such as waxes and lubricating oils.

它在杂货店中出售由人挨户推销。19世纪八十九十年代炼油者们懂得了生产其它石油产品，如蜡和润滑油。

They established chemical research laboratories which devised new and inexpensive methods for refining the product and developed invaluable byproducts, such as paraffin, naphtha, vaseline, and lubricating oils.

他们建立了化学研究实验室， 设计出新的廉价方法来提炼产品， 并开发了无价的副产品， 例如石蜡、石脑油、凡士林和润滑油。