飞机空速系统位置误差的测定，飞行试验中有多种常规方法，但其精度只能满足常规型号空速系统的验证要求。
Usually, there are many methods which may be used to determine the position of the pitot static system. But most of them have not enough accuracy to test the new type of the pitot static system.
度盘测微器系统误差是影响度盘对径改正精度和度盘位置测定精度的重要因素。
The systematic error of the circle reading micrometer is an important factor to influence on the accuracy of the diameter correction and of the position measurements of the circle.
介绍了下卧式径向偏心仪的结构原理及其灵敏度的调整方法，说明了径向偏心位置的测定方法及误差分析。
Describes the principle of the horizontal radial off-center instrument and adjustment method of its sensitivity. Explains measurement method and error analysis.
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