用于调节家用灯光强度的变阻器。
调光器；[化] 衰减器
用于调节家用灯光强度的变阻器。
A rheostat that is used to vary the intensity of a domestic electric light
调光器
a rheostat that varies the current through an electric light in order to control the level of illumination
用于选择道路车辆前照灯近光或远光的开关。
A switch used to select between the low and high headlamp beam on a road vehicle. (usually as "dimmer switch", primarily in North America; elsewhere "dipswitch" or "dipper switch")
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