每个字符都是一个开或关的设定。
火箭发动机给汽车提供大量的动力，但是操作它只是开或关。
The rocket gives the car plenty of power, but it is either on or off.
如果他们忘记关牢窗子，那么他们会爆开的。
If they had forgotten to fasten their Windows, they would burst open.
汤米在看着百叶窗开了又关，关了又开。
Tommy was watching the shutters open and then shut, open and then shut.
chkconfig命令还可以用来切换任何一个服务的开或关。
The chkconfig command can also be used to switch any service off or on.
有两种不同的声音警报，其中可以设置为开或关。
There are two different sound alerts, which can be set to On or OFF.
我可以开(关)灯吗？
门非关即开；二者择其一。
我可以开(关)灯吗？
一个事件对象如同一个开关：它仅有两种状态：开和关。
An event object is like a switch: it has only two states: on or off.
你可以在很多情形下使用这对反义词——开和关。
You can use the opposites - open and closed - in many different situations.
我可以开（关）灯吗？
它有两个状态：开与关。
转动翻页声音的开/关。
开和关，开和关，给点掌声。
双拉环，一个简单的开和关。
手动触摸窗帘开、关及停止，电源及开关名称显示。
The hand operation touch curtain opens, pass and breakup, power supply.
最好是每关都是分开单独开流流。
It is better to close each open stream individually as all are separate stream.
最好是每关都是分开单独开流流。
It is better to close each open stream individually as all are separate stream.
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