margin of speed 中文意思是什麼

margin of speed 解釋
速度限度
  • margin : n 1 邊緣；邊緣部分；范圍，限界；【軍事】圖廓。2 （版心外）空白；欄外，欄外註解。3 【商業】原價和...
  • of : OF ＝Old French 古法語。
  • speed : n 1 快，迅速。2 速率，速度。3 （汽車的）變速器，排擋。4 （膠片，照相紙）感光速度。5 〈古語〉興隆...
  1. The method of wing shape optimization of space shutlle has been developed with penalty function approach in which the objective function is the mass of the wing and the constraints are the hypersonic re - entry flight cross range, lift / drag ratio, and subsonic flight lift / drag ratio, the margin of the longitudial static stability and the magnitude of the horizontal landing speed etc

    摘要介紹了在滿足高超音速再入橫向機動航程，高超音速再入飛行時的升阻比，亞音速進場飛行時的升阻比，縱向靜穩定性裕度和水平著陸速度等飛行性能設計要求下，用罰函數法尋求使航天飛機機翼質量為最小的外形優化方法並給出了算例。
  2. Corporation, established in january 1996. is a professional production caps, gloves manufacturers, the existing staff of over 400 people, covers 7, 000 square metres, and advanced technical equipment ( korea, japan imported japanese white - eye plane eight taiwan, lane, machines, ironing machines, sewing margin machines, such as high - speed ping fengji proprietary equipment 270 taiwan ), and strong technical forces

    公司創建於1996年1月，是一家專業生產帽子、手套的廠家，現有員工400餘人，佔地面積7000平方米，並擁有先進的技術設備（韓國、日本進口繡眼機八臺、里條機、整燙機、縫邊機、高速平縫機等專有設備270餘臺）和雄厚的技術力量。
  3. By means of the sea trial, it is verified that at full loading condition of 12. 5m draught, the vessel ' s speed attained to 15. 09 knots with the rotate speed of 100. 5rpm, at the condition of the sea margin of 15 % and rotate speed margin of 5 % at csr of main engine

    Sin ） ，主機正常功率帶有15的海上裕度和5轉速裕度時，航速為15刀9節，轉速100 5pm ，與設計吻合。最後，本文進行了滬東型（ hd ）螺旋槳的系列研究。
  4. Directing against state of affairs at present, such as margin of type - selection parameters being selected comparatively large during design stage of air fans for boilers in thermal power plants, the opening degree of air fans in operation being often smaller ( for adjustment of inlet regulator ) or operation at lower revolution speed ( for speed - regulating operation mode ), and efficiency of air fans being lower etc., factors and corresponding measures having to pay attention in margin selection of air fan ' s parameters have been put forward through analysing practical example of retrofitting forced draft fans in one power plant, playing certain positive role for energy - saving and benefit - increasing in power plants

    摘要針對目前火力發電廠鍋爐風機在設計選型時參數裕量選取較大，運行時風門開度較小（對入口調節器調節）或低轉速運行（調速運行方式） ，風機效率較低的狀況，通過對某電廠送風機改造實例的分析，提出了在風機參數選擇中的裕量選取需要注意的因素及相關對策，對電廠的節能增效有一定的積極作用。
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