The pulley block on the head of the main arm can be a combined type pulley block.

所述主臂的头部的滑轮组还可 以是组合式滑轮组。

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A. Surface Closers: BHMA A156.4; rack-and-pinion hydraulic type with adjustable sweep and latch speeds controlled by key-operated valves and forged-steel main arm.

外露的闭门器：BHMA A156.4，齿条和小齿轮和液压式可调闩锁速度，由钥匙阀和锻造钢铁主臂控制。

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PricewaterhouseCoopers (PWC) is leading a similar effort at Lehman's main European arm.

资诚会计师事务所在雷曼的主要欧洲机构正在主导一项类似的工作。

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Most other Asian stock markets were down sharply, a reaction to word that Dubai's main investment arm is having trouble servicing its debt.

VOA: standard.2009.11.27

About BBC Worldwide BBC Worldwide Limited is the main commercial arm and a wholly owned subsidiary of the British Broadcasting Corporation (BBC).

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Last December, in a transaction surreal even by Russian standards, Yuganskneftegaz, Yukos's main production arm, was forcibly sold in another rigged auction, to a front company registered at a provincial grocery shop.

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