| 单词 | machine |
| 释义 | machine 1. A simple, unpowered instrument, such as a lever, pulley, or inclined plane, that is used for performing some kind of work by transmitting or changing the direction of energy. 2. A powered mechanical device, such as an automobile or drill press, that consists of a structure and various moving and unmoving parts and is for doing some kind of work. 3. An electronic device, such as a computer or facsimile machine, that can be thought of as operating on a mechanical basis. Such machines have automated many of the functions previously performed by humans. See also human. 74570c13.qxd 9/11/07 12:25 PM Page 300 |
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