revolutions是什么意思？

revolutions

• n. 革命( revolution的名词复数 )，彻底改变，旋转，运行；

例句

• The drum is rotated at 20 revolutions per minute for 10 minutes. 圆筒以每分钟20转的速度转10分钟.
• This machine runs at speed of 500 revolutions per minute. 这台机器每分钟500转.
• The shaft and discs rotate at about forty revolutions per second. 竖轴和磁盘每秒钟大约旋转40转.
• Automatic feed back circuit to keep constant revolutions of handpiece under variety of working condition. 自动回溯回路设计,可确保手机在各种加工条件下可常速运转.
• As with many technological revolutions, you are unlikely to be aware of it... 就像诸多的技术革命一样，你可能不太会注意到它。

柯林斯高阶英汉双解学习词典释义

• N-COUNT
  革命;武装运动
  A revolution is a successful attempt by a large group of people to change the political system of their country by force.
  例句
  The period since the revolution has been one of political turmoil. 革命爆发后就陷入了政治动乱期。 ...after the French Revolution. 法国革命之后
• N-COUNT
  重大变革;巨大变化
  A revolution in a particular area of human activity is an important change in that area.
  例句
  The nineteenth century witnessed a revolution in ship design and propulsion. 19世纪船舶设计和船舶动力领域发生了重大的变革。 ...the industrial revolution. 工业革命