【判断题】Given the same diameter of gear pitch circle, the gear pump with fewer teeth has larger delivery.
【单选题】Pitch-circle diameter for a gear is (Single option: 10 points)
【简答题】果树根系依产生的部位不同可分为()、()和()。
【判断题】An idiom is semantically integrated, thus an idiom cannot be understood even if you know all its components. [9.2.2]
【单选题】Drawing of a single gear, for external view , the pitch circle is shown with ( )
【单选题】带有电流截止负反馈环节的调速系统,为了使电流截止负反馈参与调节后机械特性曲线下垂段更陡一些,应选阻值()的反馈取样电阻。
【单选题】带有电流截止负反馈环节的调速系统,为了使电流截止负反馈参与调节后机械特性曲线下垂段更陡一些,应把反馈取样电阻的阻值选的()
【单选题】带有电流截止负反馈环节的调速系统,为了使电流截止负反馈参与调节后机械特性曲线下垂更陡一些,应把反馈取样电阻阻值选得( )。
【单选题】Gear pitch is an important parameter, which circle should be measured and obtain it? (Single option: 10 points)
B.
Addendum-circle diameter
C.
eddendum-circle diameter