black oil是什么意思

用法例句

This paper introduces five main materials for Bundy tubing──mandrels,black oil,lubricating oil,guide pipe and copper plating strip and their technical properties.

介绍了生产邦迪管的五种主要材料──芯棒、黑漆、润滑油、导管和镀铜钢带的国产化工艺及其性能，并与国外同类产品进行了比较。

Some scholars believe that the bronze mirrors from the Warring States to the Han-Tang Period are not plated with tin on their surfaces and that the "Hei-Qi-Gu" layer coloured like black paint on the surfaces are formed naturally due to the action of humic acid on the high-tin hasal body.

有学者认为，战国汉唐青铜镜表面并未镀锡，其“黑漆古”表层是高锡青铜基体在腐殖酸作用下自然形成的。

The effects of black paint on laser induced shock waves in the aluminum and copper targets are introduced when the targets are irradiated by laser pulses of 33ns duration, at laser power density around 10 9W/cm 2,and wavelength 1.

介绍了约束靶表面的黑漆涂层对激光冲击波的影响。

A mineralized layer in the top surface of a "Hei-Qi-Gu" mirror was exposed by introducing the method for preparing mineralographic thin slides.

采用矿相薄片制备方法暴露出“黑漆古”矿化层。