As by the two sides of the diaphragm metal plate is placed, changes of gap caused by deformation of diaphragm lead to changes of capacitance accordingly.
膜片两侧置有金属板，膜片变形引起的间隔变化将使电容之发生变化。
As by the two sides of the diaphragm metal plate is placed, changes of gap caused by deformation of diaphragm lead to changes of capacitance accordingly.
膜片两侧置有金属板，膜片变形引起的间隔变化将使电容之发生变化。
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