【正文】
期望的表面粗糙度,但是應(yīng)該理解每一種機(jī)械加工方法的諸多特定方面。 Sentenceanalysis: ? 2. Designing for function, interchangeability, quality, and economy requires a careful study of tolerances, surface finishes, processes, materials and equipment. ? 功能、互換性、質(zhì)量和經(jīng)濟(jì)性的設(shè)計(jì)都要求對公差、表面光潔度、工藝、材料和裝備進(jìn)行仔細(xì)研究。 Sentenceanalysis: ? Knowledge of such facts as degree of all roughness obtained by any operation, and the economics of attaining a smoother surface with each o