滑轮

Ride or roller-blade in huge Centennial Park, then stop for coffee and lunch on Oxford St or in the mini-village of Five Ways.

骑车或脚踩滑轮畅游巨大的世纪公园，然后稍事休息，在牛津街或美丽的五街上的咖啡馆午餐。

I never learned how to roller-skate.

我从来没有学过溜滑轮。

I can roller-skate.

我会溜滑轮。

Skateboard narrow board about 50 cm long,with roller-skate wheels fixed to it,which the rider stands on,eg to take part in races,demonstrate skill,etc

滑板(长约50厘米的窄板，装有滑轮，可站在上面滑行，如作比赛或表演等)。

Influence of groove hardness of steel sheave on fatigue life of wire rope from HB170 to HRC60 is investigated.

对绳槽硬度从HB170～HRC60的各种滑轮对钢丝绳疲劳损伤的影响进行了研究。

While the sheave on most pulleys will not "spin," it should still turn freely.

这是对滑轮的描述，不知spin和turn怎么区别好

Mechanisms of fatigue failure of wire rope working with sheave are related to safety, reliability and economy of Wire rope transmission.

钢丝绳绕滑轮工作的疲劳损伤机理问题，关系到钢丝绳传动的安全性、可靠性和经济性。

Simple one sheave and two sheaves pulleys.

简单的单绳轮和双绳轮滑轮。

The steel wire rope was liable to be caught due to excessive play between the sheave and the cheeks.

因滑轮与外壳间隙太大，使用时钢索经常夹在里面。

It is a professional company that mainly produces hot pressing sheave,lifting trochlea and other lifting mechanical accessories.

主要生产热轧滑轮、吊钩总成、起重滑车和其它起重机械零部件。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。