a signal flag的意思|示意

A fox USES its tail (or "brush") as a warm cover in cold weather and as a signal flag to communicate with other foxes.

狐狸用它的尾巴(或“毛刷”)在冷天时盖上保暖，同其他狐狸交流时亦可用来做信号旗。

Then the rain came and the red flag went up to signal a halt.

当时，雨下了起来，红旗被升起，发出停止的信号。

The only thing you should normally do inside a signal handler is set a global flag that will be processed later.

在一个信号处理器内部，您通常应该做的一件事是，设置一个将在以后处理的全局标记。

A black flag in a car race is the signal for a driver to go to the pits.

在汽车比赛中，黑旗是要车手进维修站的信号。

If the restart flag is set to True (the default), then an interrupt to the routine caused from some UNIX signal will cause a restart of the routine.

如果restart标志设置为True(默认设置)，那么在某些UNIX信号造成中断时，会重新启动例程。

It then sets an internal flag called suspended to true and enters a loop, waiting to be sent a signal to resume.

然后将叫作suspended的内部标志设置为true，然后进入循环，等候别人发送信号，以继续其操作。