主要分析了工程测量教学中误差基本概念的应用，描述了偶然误差和闭合差等概念，举出了教学中的一些例子。
The paper analyses the teaching of Engineering Survey, describes the basic concepts of error including the definitions of accident error and closure, and finally provides examples for teaching.
由于功率测量结果必定存在偶然误差，会导致微波相位差测量结果不精确。
But the power's error makes the error of microwave's phase shift.
由于功率测量结果必定存在偶然误差，会导致微波相位差测量结果不精确。
But the power's error makes the error of microwave's phase shift.
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