The process of two-stage hydrogen refining for the preparation of grinding oil was studied.

以常二线馏分油为原料油，研究了加氢精制生产研磨油的工艺。

youdao

He makes his own paint, grinding up the pigment with a little oil.

他把色料块加少许油磨碎，自己制成绘画颜料。

《柯林斯英汉双解大词典》

Auctions are also happening in Lagos, where oil and banking have made a few very rich, though most people still live in grinding poverty.

拉各斯同样举行着拍卖，在这个地方，石油与银行让少部分人非常富有，而大多数人仍生存在食不果腹的贫困下。

youdao

Huge problems await the next government: social unrest in the oil-producing areas of the Niger Delta, grinding poverty in the north, everywhere a collapse of long-neglected infrastructure, particularly in telecommunications and electricity.

ECONOMIST: Nigeria��s long road back to democracy

Auctions are also happening in Lagos, where oil and banking have made a few very rich, though most people still live in grinding poverty.

ECONOMIST: Another good way to spend your lovely oil money