on and off switch的意思|示意

And because the trimmer can be turned off and on with the flip of a switch, it is also more convenient than gas-fueled models: There's no temptation to idle it.

而且由于这款剪草机只需轻按按钮就能开关，因此它比汽油动力的型号用起来也更方便：你有什么理由拒绝它呢？

They are controlled by molecular triggers that switch on and off on demand.

它们由能够根据需要开启或关闭的触发分子控制。

You can then optionally switch on and off your extensions using method configurations as well as easily upgrade to newer versions of the original elements and reapply your changes.

这样你就可以使用方法配置有选择地打开或关闭你的扩展，还可以方便地把原始元素升级到更新的版本并重新应用你的变化。

When a child masters turning on and off a light switch, his brain has expended more energy than the most complicated computer that we have on earth.

一个孩子学会开灯关灯的时候，他的大脑消耗的能量超过地球上最复杂的电脑。

Using this plug-in provider, you can model your staff queries for any plug-in, and switch authorization during your tests on and off by simply changing the staff plug-in provider JNDI name for a task.

使用此插件提供程序，您可以针对任何插件建模您的人员查询，并且在打开和关闭测试期间，仅通过更改任务的人员插件提供程序JNDI名称就可切换授权。

If you only love on and off, like a light switch, you're not loving like God wants you to love.

如果你的爱只是一开一关，像一盏灯的开关，那么你就不是如上帝说的那样去爱。