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1·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。

2·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。

3·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。

4·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。

5·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。

6·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。

7·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。

8·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。

9·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。

10·They switch on slowly, and they are reluctant to switch off.

它们启动缓慢，并且很难关闭。