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[单选题]
T•JK1A型和T•JK1C型减速器电空换向阀交流工作电压为220V,电压波动不大于()
A.-15%~+10%
B.-10%~+15%
C.-10%~+10%
D.-15%~+15%
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A.-15%~+10%
B.-10%~+15%
C.-10%~+10%
D.-15%~+15%
第4题
A.不大于220V±33V
B.不小于220V±33V
C.不大于240V±40V
D.不小于240V±40V
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