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。
We set simple blueprint triggers to switch on and off some of the interior lights.
我们设置了简单的蓝图触发器来开关一些室内照明灯。
The computer can be used to switch on and off the entire equipment on the electric station.
计算机可开关发电站的所有设备。
Reppert found that clock proteins switch on and off the gene that produces vasopressin.
特发现，时钟蛋白质打开与关闭能产生后叶加压素的基因。
Another connection can be done so the heaters in the paper tray unit will switch on and off while the copier is operating.
另一个方面可以做的加热器在纸盒单位将开关，而复印机操作。
In a dc-dc converter with a given input voltage, the average output voltage is controlled by controlling the switch on and off durations (ton and toff).
在一个给定了输入电压的直流-直流变流器中，输出的平均电压是通过控制开关的导通和关断时间来控制的。
The electric station is controlled with the help of the mnemocircuit. The computer can be used to switch on and off the entire equipment on the electric station.
借助于简略电路对发电站进行控制。计算机可开关发电站的所有设备。
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。
Under the principle and structural characteristics, a new type of excitation circuit is designed, which has simple structure, and also could solve switch on and off oscillation problems bothly.
本文根据快速斥力机构特有的工作原理和结构特点设计了一种新型励磁电路，结构简单，而且能够同时解决合闸弹跳和分闸弹振问题。
They switch on slowly, and they are reluctant to switch off.
它们启动缓慢，并且很难关闭。
The engineers are also trying to develop an on-and-off "switch" where the glow would fade when exposed to daylight.
工程师们还试图研制一种间断式“开关”，当暴露在日光下时，光照会逐渐消失。
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。
“We have a long paleorecord for precipitation, and you see that there was almost a switch. The monsoon was either on, or it was off, with very little in between,” said Levermann.
我们得到了有关降水的很长一段历史记录，从中可以发现季风有一个开关，要么开着，要么关闭，很少出现中间状况，“莱韦尔曼说。
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？
The stop/start-enginenotifications could switch the engine off and on automatically, or they couldtrigger alerts to the driver to turn it off/on manually.
这种引擎开/关通知可以自动地在开启与关闭之间切换，或者该系统也可以给司机发送“戒备信号”让司机自己动手开启或关闭汽车引擎。
With AIX, the iptrace is a background daemon, so you must explicitly start and stop the tool to switch the process on and off. For example, to start, type.
对于AIX,iptrace是一个后台守护进程，因此您必须启动和停止该工具，以便对进程状态进行切换。
By increasing or lessening the hours of darkness in each day, the scientists have been able to turn plant growth off and on like an electric switch.
用增加和减少每天黑暗小时数的方法，科学家已经能够控制植物生长，如同控制一个电器开关。
Instead, for most people, it switches on and off like a light switch.
相反，对于大多数人来说，它就像开关一盏灯一样。
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。
So, very crudely, the thing on the wall is the switch DNA, your finger is the regulator, and gene expression is the light turning on or turning off.
因此，大体上可以这么形容，在墙上的东西就是开关DNA，手指是调控器，基因表达就是打开灯或关闭灯。
Although the rats had regained the ability to walk, they were still reliant on an electrical wire to switch their movements on and off.
虽然这些老鼠已恢复了行走能力，但是，它们仍需依靠一根电线来带动自己行走及停止。
You don't have to be doing it at hyper level at the time, but remember relationship building doesn't have an on and off switch.
你不必过于紧张，但要记住，关系建设不是像开关那样，说有就有，说没有就没有，而是需要一个过程。
One space tourist (whose identity is closely guarded) forgot to switch on the vacuum in the ISS toilet before off-loading. The results were disastrous, and the chamber was splattered with feces.
曾有个太空游客(身份严格保密)在空间站如厕时忘记打开真空吸入管，结果太可怕了，整个厕所都是喷溅的排泄物。
You can decide to switch off the validation during certain application development cycle and switch it back on later on.
可以决定在应用程序开发的某些阶段关闭检验，以后再打开它。
“Even though the panel will not be large enough to power the entire car, it could provide enough power to switch the engine off and on when the car is stopped at a traffic light, ” he said.
“尽管面板不能提供整辆车的动力，但是当车遇红灯停下时，它足以提供发动机熄火和启动所需的能量了。”他继续说。
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。
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。
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