工人们开始安装球场两端的24秒计时器和高清大屏幕。

Workers assembled the shot clock and two high-definition videoboards at opposite ends.

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所有线程已启动后，将等待30秒再启动计时器。

After all of the threads are started, plus a 30 second wait, the timer is started.

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不过，如果控制消息在五十秒后发送，由于该计时器不再处于活动状态，因此会处理此消息。

If however, the control message is send AFTER fifty seconds, and the timer is no longer active, it will be processed.

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