time-marking clock 定时钟 ; 记时钟 ; 补打时号钟
For example, the Long Now Foundation has as its flagship project a mechanical clock that is designed to still be marking time thousands of years hence.
例如，Long Now 基金会有一个作为旗舰项目的机械钟，它的设计目的是几千年后仍在计时。
He kept a "countdown clock" in his briefcase marking the time he had left before his retirement to Washington state.
那段时间里，他一直在自己的公文包里放着一块倒计时钟，显示自己还有多长时间可以向华盛顿州提出辞职。
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