单项选择题
the back-emf in armature is inversely proportional to t...
未知题型the back-emf in armature is inversely proportional to the rotor rotation speed.
作业动因是引起作业耗用的成本动因，它反映了资源耗用与作业量之间的关系。（ ）
判断题作业动因是引起作业耗用的成本动因，它反映了资源耗用与作业量之间的关系。（ ）
Which are the impact made by large moment of inertia?A、...
单项选择题Which are the impact made by large moment of inertia?
