For grinding mill roll, casting, ingot steel, machineries, bearing and piston ring etc.

Actually, piston ring is working under the state of boundary lubrication and the half dry friction.

活塞环实际上是在边界润滑和半干摩擦状态下工作.

The influence of sand & dust and low pressure on dynamics of piston ring was studied.

研究了西部低气压 及 沙尘环境对于活塞环动力学的影响.

Basically, this compressor is not in the oil cylinder, the piston ring and packing usually PTFE.

这种压缩机气缸中基本上不含油, 其活塞环和填料一般为聚四氟乙烯.

Piston Ring in the domestic industry more competitive enterprises.

是国内活塞环行业中较有竞争力的企业.

A simple testing method of wear resistance for piston ring and cylinder sleeve is introduced.

本文介绍一种简易的活塞环与气缸套磨损试验方法.

I had a feeling in the pit of my stomach that something terrible was going to happen.

我内心深处觉得有什么可怕的事就要发生了。

This was one man pitted against the universe.

这是一个人挑战整个宇宙。

the corn pit

玉米交易厅

Assign each entry a rating, status, and priority, and sort any journal by those values.

每个条目指定一个等级, 地位和优先事项, 并整理这些有价值的日志.

Mary Ann asked him how dinner had been. 'The pits,' he replied.

玛丽·安问他晚餐怎么样，他回答说：“糟透了。”

The company refused to pay – I think it's the pits.

那家公司拒绝付款,我认为这太恶劣了。

a chalk/gravel pit

白垩 / 沙砾矿坑

the deep pits left by smallpox

天花遗留下的深深的痘痕

We dug a deep pit in the yard.

我们在院子中挖了个深洞。

(British English)He went down the pit (= started work as a miner ) when he left school.

他中学一毕业就当矿工了。

I had a funny feeling in the pit of my stomach.

我心头有种怪怪的感觉。

Smallpox scars had pitted his face.

他满脸是麻子。

The body had been dumped in a pit.

尸体被扔进了深坑。

pit closures

煤矿关闭

He had a sudden sinking feeling in the pit of his stomach.

他内心深处突然有一种不祥之感。