The new blade surface quality evaluating indexes are put forward through the analysis of present situation of measurement on the surface tolerance of blade.
通过分析叶片型面测量及误差分析的现状，提出了新的叶片型面质量评估指标。
Be able to label and read surface roughness codes, codes of size tolerance and fitting, and geometrical tolerance codes.
会正确注写和识别表面粗糙度代号，尺寸公差与配合代号，形位公差代号。
Then, roughness, precision and tolerance for surface machining were obtained by transition of formative feature recognition.
面向加工的表面粗糙度、精度等级、 公差等级等，通过造型特征识别转换得到。
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