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[主观题]
起重机小车运行机构的制动行程为()A.υ2/5000—υ/20B.υ2/5000—υ/15C.υ/100D.υ/200
起重机小车运行机构的制动行程为()
A.υ2/5000—υ/20
B.υ2/5000—υ/15
C.υ/100
D.υ/200
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起重机小车运行机构的制动行程为()
A.υ2/5000—υ/20
B.υ2/5000—υ/15
C.υ/100
D.υ/200
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