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单词 starting box
释义

> as lemmas

starting box
starting box n. a rheostat used to control the current when starting an electric motor.
ΚΠ
1890 Science 1 Aug. 58/1 A perspective view of a motor, with sliding base and starting-box complete.
1930 Sel. Gloss. Motion Picture Techncian (Acad. Motion Pictures, Hollywood) Starting box, rheostat used to control current supplied to a motor during starting, to prevent damage to the motor winding.
2012 S. L. Herman Direct Current Fund. (ed. 8) xxii. 407 The three-terminal starting box is not suited for use where a field rheostat is used to obtain above-normal speeds.
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