... left handed system 左手系 left handed quartz 左旋水晶 left handed crystal 左旋水晶 ...
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left-handed quartz 左旋石英
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The sensor consists of two sets of quartz wedges which are respectively right-handed and left-handed with equal angle.
传感元件为两套楔角相同的左旋和右旋石英光楔。
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