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In order to change the direction of rotation of a D-Cmotor () (1) the field leads must be changed (2) the input leads must be changed
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In order to change the direction of rotation of a D-Cmotor () (1) the field leads must be changed (2) the input leads must be changed
A、(1)only
B、(2)only
C、either(1)or(2)
D、neither(1)or(2)
时间:2022-01-04 14:56
关键词:
船舶电气与船舶安全
答案解析
A
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