If you need the exact time, you can go to the dining room, there's a quartz clock on the wall there.
如果你想知道准确的时间，你可以到餐厅去，在那里墙上挂着一个石英钟。
Nearly all computers contain a quartz-crystal clock to regulate their operation.
几乎所有的计算机都有一个石英晶体时钟来调节它们的运行。
They all use the same basic mechanism: a 32, 768hz quartz-crystal oscillator, along with the electronic and mechanical parts that convert its oscillations to clock ticks.
他们都采用同样的基本原理：一个32,768 Hz石英晶体摆动装置，同时还有电子和机械部件将振动转化成钟表的滴答声。
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