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What is a clock?
May 30, 2018
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Watches and clocks are widely used and have many varieties. They can be classified according to their vibration principles, structures and uses. According to the principle of vibration, it can be divided into clocks with low frequency of mechanical vibration, such as pendulum clock, pendulum clock, and so on; the clocks and clocks with high frequency of electromagnetic oscillation and quartz oscillation, such as synchronous clock, quartz clock, etc. can be divided into mechanical types according to the structure characteristics, such as mechanical alarm clock, automatic, calendar, double calendar, spring and other mechanical watches. Electrical machinery, such as electric pendulum clock, electric pendulum clock, etc.; electronic type, such as the pendulum wheel electronic clock, the tuning fork electronic clock, the pointer type and the digital display type quartz clock and so on.


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