当你有未读通知时，几乎所有的安卓系统收集都会有LED灯闪烁。
On nearly all Android phones, there’s an LED that blinks when you have unread notifications.
这意味着，诸如指示灯这样的日常设备就能用于通知我们构建失败。
This means that every day devices such as lights can be used to notify us of a build failure.
你打开安全带指示灯，并通知机组人员，告知他们是否要把一些设备或者手推车储藏起来，让飞机上不会有东西飞起来。
You put the seat belt signs on and advise the cabin crew, telling them whether they need to put away equipment or trolleys so that nothing flies around the plane.
固定自动亮度，硬件锁灯和轨迹球通知。
Fixed auto brightness, hardware key lights and trackball light notifications.
该灯也熄灭为正常后，接受或拨打电话，经过电话显示系统的通知（约等新的消息）。
The light also goes out as normal after receiving or making a call, and after the phone displaying system notifications (about new messages etc. ).
这个回调标记了activity生命周期中的一个恰当的点，可以用来“在用户看过通知之后”将它们清除，如闪烁led灯。
The callback marks an appropriate point in the activity's lifecycle for it to dismiss any notifications that it intends to display "until the user has seen them," such as a blinking LED.
故障通知电路由表示灯和音响电路构成，一旦电路故障就可自动告警。
The accident noticing circuit is composed of an indication lamp and a sound circuit, and can automatically give the alarm when the circuit has accidents.
故障通知电路由表示灯和音响电路构成，一旦电路故障就可自动告警。
The accident noticing circuit is composed of an indication lamp and a sound circuit, and can automatically give the alarm when the circuit has accidents.
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