Professional English in use1 7. Dimensional accuracy A. Precision and tolerance It is impossible to produce components with dimensions that are absolutely precise, with sizes exactly the same as those specified in a design. This is because all production processes are imprecise to a certain extent. Therefore, the sizes of several components produced from the same design will vary (differ). Although the variation may only be a few hundredths of a m.. 2023. 2. 20. 이전 1 다음