适用于电视聚焦，振荡，定时回路。

Used in TV gathering focus, oscillation frequency and timer circuits.

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适用于电视聚焦，振荡，定时回路。

The sympathetic vibration of a circuit to a signal.

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没有复位至零，这意味着合成回路锁定时间将是可变的。

There is no reset to zero , which means that the synthesiser loop lock-up time will be variable.

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它能关合、承载、开断运行回路正常电流，也能在规定时间内关合、承载及开断规定的过载电流。

It can turn on, bear and break normal current in circuit, but also bear and break the overloaded current within stipulated time.

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它能关合、承载、开断运行回路正常电流，也能在规定时间内关合、承载及开断规定的过载电流。

It can turn on, bear and break normal current in circuit, but also bear and break the overloaded current within stipulated time.

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