perpetual motion

• n. [物]永恒运动

perpetual motion的英文翻译是什么意思，词典释义与在线翻译：

英英释义

Noun:

1. motion that continues indefinitely without any external source of energy; impossible in practice because of friction

perpetual motion的用法和样例：

例句

用作名词 (n.)

1. My organ grinder has discovered the miracle of perpetual motion.Round and round goes his arm, his body rocking to the effort.
   我那位演奏风琴的艺人已发现了永恒运动的奥秘，他的手不断地拉来拉去，身体也随音乐摇晃。