基本解釋[交通運輸工程]主推進裝置英漢例句雙語例句Causes for damage of main parts of Z---type marine propulsion unit are introduced in this pa- per. it also gives the making of plan. design principle and repair methods.介紹船用Z型推進裝置主要零備件的損壞原因以及在進行零備件國產化過程中的方案制定、設計原則和修理方法。Once you are on the surface, the main unit for propulsion are your arms, so it is very important that your draw the right pattern underwater, and that is a hourglass pattern.身體浮到水面后，最大的推進力量就來自手臂。因此正確的水下劃水路線非常重要，也就是沙漏狀劃水。main propulsion unit更多例句詞組短語短語main machinery propulsion unit 主推進裝置ship 's main propulsion unit 艦艇主動力裝置main propulsion unit更多詞組專業(yè)釋義交通運輸工程主推進裝置