The equivalent radius error sensitivity evaluation system is introduced to analyze the effects of error space when different dimensional errors are put on operative mechanism.
引入等效半径的误差敏度评价体系，分析不同量纲误差对执行端误差空间的影响。
It can be used in measuring not only dimensional and shape errors, but also relative positions as in the cases of perpendicularity, parallelness, conicity, distance between holes, etc.
它不仅能测量尺寸、形状误差，还可以测量垂直度、锥度、孔中心距、平行度等相互位置误差。
Objective: To examine and analyze the set-up errors for patients with three dimensional conformal and Intensity Modulated Radiotherapy to calculate CTV referential safety margins of PTV.
目的：测定和分析三维适形及调强放疗的摆位误差，并依此计算CTV外扩PTV边界的大小。
In the meanwhile, the errors caused by the application of two-dimensional calculation in the intersecting thermal bridge part and the method of correction are also investigated.
本文同时介绍了交叉热桥部位采用二维计算所引起的误差和修正方法。
Based on the part surface errors and fixture setup errors, locating error model of three-dimensional part is built.
基于定位点处的尺寸偏差，建立了三维零件的定位误差模型。
In reflective light path, because of the errors in assembling, planar reflector would have three tiny dimensional angles stray.
在折转光路中，由于安装误差，平面反射元件会存在三维方向的微偏角。
It is demonstrated that the errors of the unified valve model are dependent on the damping coefficient alone using a non-dimensional approach.
采用非量纲分析法，验证了统一模型的误差仅依赖于阻尼系数。
Pressure and 3-dimensional velocity distributions in the pipe section are measured. The causes of Lange measuring errors of section flow energy in the outlet pipe by conventional method are analyzed.
测量出水管断面水流压力和三维流速分布，分析常规方法测定断面水流能量误差较大的原因，提出利用五孔探针准确测定断面水流全压分布、积分平均计算断面单位能量的方法。
Pressure and 3-dimensional velocity distributions in the pipe section are measured. The causes of Lange measuring errors of section flow energy in the outlet pipe by conventional method are analyzed.
测量出水管断面水流压力和三维流速分布，分析常规方法测定断面水流能量误差较大的原因，提出利用五孔探针准确测定断面水流全压分布、积分平均计算断面单位能量的方法。
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