但是由于步进电机存在步距角较大及低速振动等问题，限制了它在高精度场合下的应用。
Due to such problems as bigger stepper Angle, and low speed vibration, the use of the stepper motor in high precision conditions is limited.
由于受到某些条件限制等原因，有时不得不采用水平振动给料机，而四轴惯性水平振动给料机是最常见的一种。
Sometimes we have to use horizontal feeder due to the limitation of certain conditions. Four axel inertia horizontal vibration feeders are the most widely used kind.
在结构振动主动控制的研究中，控制能量是限制其广泛应用的瓶颈。
The amount of control energy has become a bottleneck of its extensive application in the research of structure vibration active control.
应用推荐