前言 機械繪圖標准,各國不一。我國目前各廠標準,亦不完全一致。曾有人提及制定全國統一的機械繪圖標準,但此事並非一朝一夕可能成功。須根據我國機械製造歷史,今後可能的生産力發展,以及目前的客觀環境而定。當然此種制定標準事宜,是應由政府有關部門邀集專家開會研究擬定試行。本文所論及者,不過提出幾點,僅關于互換性製 Foreword Mechanical drawing standards vary from country to country. China’s current factory standards are not exactly the same. It has been mentioned that the establishment of a unified national mechanical drawing standards, but this may not be successful overnight. It must be based on the history of China’s machinery manufacturing, possible future productivity development, and the current objective environment. Of course, such standards-setting matters should be invited by the relevant government departments to meet experts to study and formulate a trial. This article discusses, but raised some points, only about the interchangeability system