短語詞組短語mechanical commutation drafting 機(jī)械制圖Mechanical Design and Drafting 機(jī)械設(shè)計(jì)制圖mechanical drafting teaching 機(jī)械制圖教學(xué)computer aided mechanical drafting 計(jì)算機(jī)輔助機(jī)械制圖the course of mechanical drafting 機(jī)械制圖課drawing geometry and mechanical drafting 畫法幾何及機(jī)械制圖Mechanical and Auto CAD Drafting 機(jī)械制圖與AUTO 返回 mechanical drafting