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f assembly drawings, the following items should be considered while selecting the front view: 為了滿足生產的需要 , 應正確運用裝配圖的各種表達方法 , 將機器或部件的工作原理、各零件間的關系及主要零件的基本結構清晰地表達出來。視圖表達方案力求簡明,便于讀圖。選擇主視圖時應考慮的原則為: Selecting other views 其他視圖的選擇 One may use different views to represent various other portions not clearly represented in the front view.