The structure and properties of quartz crystal elements
On 2018-11-03 13:39:16 in Question
The quartz crystal element is composed of a quartz wafer,a wafer bracket and a case.The role of the quartz crystal element in the circuit is equivalent to a high Q value LC resonant element ...
What are the problems should be paid attention to when using automobile digital multimeter?
On 2019-03-08 11:15:46 in Question
This article describes some problems should be paid attention to when using automobile digital multimeter ...
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