Historically these aircraft were universal machines, capable of both establishing air superiority and carrying out powerful strikes on ground targets and enemy fleets.

历史上，这些飞机都是可以执行多种任务的，既可以参加空战，也可以携带重武器去攻击地面和海面目标。

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For example, in the universal testing machines, the motion between the fixed and moving crossheads can be controlled at a constant speed.

例如，在万能拉伸试验机上，固定端和移动的十字滑块之间的变形是以恒定速度进行的。

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Loads are commonly applied with universal testing machines, hydraulic cylinders dead weights, or some form of pressure.

通常是用万能试验机、液压缸重物或某种形式的压力施加载荷。

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It connects to the TV through either the composite video or S-Video port, and to the PC through the Universal Serial Bus port common on most newer machines.

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But even if machines are closely monitored by polling staff--a condition that's far from universal--a more realistic concern may be innocent bugs that miscount or ignore votes.

FORBES: Magazine Article