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【简答题】

静差率δ与转差率s有何异同? 

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参考答案:
参考解析:
.
刷刷题刷刷变学霸
举一反三

【单选题】调速系统不属于有静差直流自动调速系统的是()。

A.
转速、电流双闭环直流自动调速系统
B.
电压负反馈直流调速系统
C.
带电流正反馈环节的电压负反馈直流调速系统
D.
带电流截止负反馈环节的转速负反馈直流调速系统

【单选题】p.p1%252520%25257Bmargin%25253A%2525200.0px%2525200.0px%2525200.0px%2525200.0px%25253B%252520text-align%25253A%252520justify%25253B%252520font%25253A%25252010.5px%252520Helvetica%25257D%25250Aspan.s1%...

A.
p.p1%252520%25257Bmargin%25253A%2525200.0px%2525200.0px%2525200.0px%2525200.0px%25253B%252520text-align%25253A%252520justify%25253B%252520font%25253A%25252010.5px%252520%252526%25252339%25253BTimes%252520New%252520Roman%252526%25252339%25253B%25257D s >1
B.
p.p1%252520%25257Bmargin%25253A%2525200.0px%2525200.0px%2525200.0px%2525200.0px%25253B%252520text-align%25253A%252520justify%25253B%252520font%25253A%25252010.5px%252520%252526%25252339%25253BTimes%252520New%252520Roman%252526%25252339%25253B%25257D 0s
C.
p.p1%252520%25257Bmargin%25253A%2525200.0px%2525200.0px%2525200.0px%2525200.0px%25253B%252520text-align%25253A%252520justify%25253B%252520font%25253A%25252010.5px%252520%252526%25252339%25253BTimes%252520New%252520Roman%252526%25252339%25253B%25257D s
D.
p.p1%252520%25257Bmargin%25253A%2525200.0px%2525200.0px%2525200.0px%2525200.0px%25253B%252520text-align%25253A%252520justify%25253B%252520font%25253A%25252010.5px%252520%252526%25252339%25253BTimes%252520New%252520Roman%252526%25252339%25253B%25257D -1s

【单选题】自动调速系统通过( )实现无静差调速。

A.
比例调节器
B.
微分调节器
C.
运算放大器
D.
积分调节器