The low speed machine usually has a short and fat structure in order to use effectively the rotating speed of the rotor, as contrasted with the long and thin structure of the high speed machine.

由于电机转速很低，为了充分利用其圆周线速度，一般需要采用直径大而轴向长度短的结构，与传统高速电机的细长结构有很大区别。

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A high speed rotating welding arc sensor was developed by the authors. Compared with the existing arc sensors, its superiority is much more compact and more sensitive.

介绍了一种高速旋转电弧传感器，与现有的同类传感器相比，具有结构紧凑、灵敏度高的特点。

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There always exhibits distinct mechanical behaviors of a rotating disk with high-speed comparing to a rotating disk with low-speed or a non-rotating disk.

旋转圆盘是广泛应用于旋转机械装置中的基本结构元件，圆盘在高速旋转状态下会表现出与低速或非旋转状态下迥异的力学性能。

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