One or two even refused to tumble away and instead grabbed on to the mechanical arm, where they clung on for dear life.

一两个人甚至拒绝翻倒开始攀住机械臂，以保住他们宝贵的生命。

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The movement of the mechanical arm, directed by the transplanted nerve, is as intuitive as the motion of a natural arm.

由移植神经掌控的机械手臂，能如自然胳膊成为直观的运动。

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To seize the space debris, the mechanical arm need to lock the concrete goal, but in space, debris is changing position.

要抓住太空碎片，这只机械手臂需要锁定具体目标，但在太空中，碎片是不断变换位置的。

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In one memorable week last year, the hot water heater, the pool pump and the mechanical arm on the gate in their driveway all went on the fritz.

FORBES: Magazine Article

The Department of Defense does not have a submersible that can reach 5, 000 feet with the mechanical arm power to do the types of things that BP and other oil companies buy equipment to do.

WHITEHOUSE: Press Briefing

Held in a scoop on the rover's mechanical arm, the tablespoon of pulverized gray rock offers planetary scientists their first sample from the planet's interior, where it may have been sheltered from the harsh surface chemistry and ultra-violet radiation.

WSJ: Rover on Mars Extracts First Rock-Core Sample