powered
adj equipped with or operated by mechanical energy 有动力装置的; 用动力推动的
*a new aircraft powered by Rolls Royce engines 一架装备有罗尔斯.罗伊斯（亦译劳斯.莱斯）发动机的新飞机
* a high-powered car 马力大的小汽车
* (fig 比喻) rather low-powered political discussions 显得有点没精打采的政治讨论.
*a new aircraft powered by Rolls Royce engines 一架装备有罗尔斯.罗伊斯（亦译劳斯.莱斯）发动机的新飞机
* a high-powered car 马力大的小汽车
* (fig 比喻) rather low-powered political discussions 显得有点没精打采的政治讨论.
1. With scarcely a glance at the items, the clerk sweeps them across an aperture, where a special marking on each item is scanned by a low-powered laser beam inside the machine, connected to a remote computer.
收款员几乎不看商品，只是把商品从机器上的孔眼处一扫而过，机器里的低能量激光对商品上的一个特殊标志进行扫描，这台扫描机与另一台电脑相联。
2. He called his machine an aspirator (吸气器). The huge device was powered by a steam engine.
他称之为吸气器。这个巨大的装置是由蒸汽机带动的。
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收款员几乎不看商品，只是把商品从机器上的孔眼处一扫而过，机器里的低能量激光对商品上的一个特殊标志进行扫描，这台扫描机与另一台电脑相联。
2. He called his machine an aspirator (吸气器). The huge device was powered by a steam engine.
他称之为吸气器。这个巨大的装置是由蒸汽机带动的。
更多句子>>>
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