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eanalysis: ? 3. Tolerances on finish and dimensions play an important role in the final achievement or absence of practical production design. ?光潔度和尺寸公差在最終效果(成品)或者沒有實際加工的設(shè)計中起重要作用。 Sentenceanalysis: ? 4. Details of all parts should be surveyed carefully to assure not only inexpensive processing but also rapid, easy assembly and maintenance. It must be remembered that each production method has a wellestablished level of precision whic