单词 | simple machine |
释义 | simple machine n. Any of numerous basic devices that alter the magnitude or direction, or both, of an applied force, traditionally including the lever, wedge, inclined plane, wheel and axle, pulley, and screw. |
随便看 |
英语词典包含135693条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。