弹筒式直结主轴：主轴与主轴马达为减少传动连结所产生的误差与震动，采用一体式直接设计，并采用高精密abect。

Barrel type straight spindle: spindle and spindle motor to reduce the transmission link error and vibration, the use of integrated direct design, and the use of high precision ABECT.

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本文从旋转变频磁控管式频率捷变雷达的本振频率跟踪原理出发，分析了产生本振频率跟踪误差的主要因素。

The' main factors resulting in local frequency tracking error are analyzed based on the principles of the tracking local oscillator for frequency agile radars of rotary tuning magnetron type.

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针对一移动桥式三坐标测量机，分析了其动态误差的产生原因，建立了动态误差的数学模型，对动态误差进行了全面的测量和补偿。

For a moving bridge machine under investigation, the dynamic error sources are analyzed, a model for dyna mic error is made and the errors are measured completely.

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