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单词
rheostat
释义
rhe.os.tat
Hri:7EJ7stAt, $-oJ-
n [C]
a device that controls the flow of electric current in a machine
变阻器
A rheostat can be used to control the brightness of electric lights.
变阻器可被用来控制电灯的亮度。
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in absentia
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更新时间：2026/5/12 11:15:20