simple device的用法和樣例：
例句
- A simple device, such as a lever, a pulley, or an inclined plane, that alters the magnitude or direction, or both, of an applied force; a simple machine.
機械裝置一個(gè)簡(jiǎn)單裝置，如杠桿、滑輪或斜面刨，可以改變作用力的大小或方向或同時(shí)改變; 簡(jiǎn)單機械裝置 - The inventor evolved his complex machine out of a relatively simple device.
發(fā)明者把一個(gè)相當簡(jiǎn)單的裝置研制成一個(gè)復雜的機器。
