短期輪作 的英文怎麼說
中文拼音 [duǎnqīlúnzuò]
短期輪作
英文
short rotation-
He travels to colombia from uruguay, where he held talks with president tabare vazquez that focused largely on trade
在波哥大停留期間，他將與一參加美國教育項目的哥倫比亞黑人團體會面，還將聽取關于引導農民種植輪種作物的簡短報告。It has to be noted, that the researches given in this dissertation may not be mature. yet, based on the intentions to improve the technical application of mers and on the philosophy of renovati
值得指出的是，本文的研究探討也許不完全成熟，但本著改進輪機模擬器技術應用和力圖創新的思想，通過研究對擴大輪機模擬器培訓規模、縮短培訓周期、增強運行穩定性、提高培訓d效果可能起到一定的推動作用。A new aerodynamic design system developed by authors for draft fan with enhanced efficiency, suppressed noise, enlarged flux and high load. the new design system features : a twist regulation for vortex control is employed in designing to lessen the secondary flow loss in the blade tip and hub ; the feasibility and high efficiency of this procedure has been verified by the tests of the prototype fan ; a new computer - aided 3d blading is used to optimize the blade ; numerical inverse checking is adopted to enhance accuracy in designing and cut down the period of the designing and production. this design system can make the optimized blade with " forward inclination ", " inclining sweep ", " bending sweep ", to minimize the various secondary flow losses, to expand the steady working range of the fan, and to suppress the aerodynamic noise source
本文通過對一種新型高性能礦用局部通風機的設計、製造及試驗全過程的綜述，展現了新的先進設計體系在民用通風機上的成功運用，其研製特點是： （ 1 ）在葉片氣動設計中為了降低葉根及葉尖區二次流損失，採用可控渦扭向規律設計，樣機實測的高性能驗證了這種方法的可行性和高效性； （ 2 ）在設計方法中採用較精確的數值反驗算，獲取最優設計方案，大大提高設計的準確性和成功率，並縮短了設計試制周期； （ 3 ）在設計過程中發展了計算機輔助三維葉片造型新方法，可以根據設計需要簡便快捷地對葉片進行「前傾」 、 「傾掠」或「彎掠」造型，這些造型對減小各種二次流損失、擴大穩定工況范圍和控制葉輪機氣動噪聲源起到了非常好的作用。Abstract : a new aerodynamic design system developed by authors for draft fan with enhanced efficiency, suppressed noise, enlarged flux and high load. the new design system features : a twist regulation for vortex control is employed in designing to lessen the secondary flow loss in the blade tip and hub ; the feasibility and high efficiency of this procedure has been verified by the tests of the prototype fan ; a new computer - aided 3d blading is used to optimize the blade ; numerical inverse checking is adopted to enhance accuracy in designing and cut down the period of the designing and production. this design system can make the optimized blade with " forward inclination ", " inclining sweep ", " bending sweep ", to minimize the various secondary flow losses, to expand the steady working range of the fan, and to suppress the aerodynamic noise source
文摘:本文通過對一種新型高性能礦用局部通風機的設計、製造及試驗全過程的綜述，展現了新的先進設計體系在民用通風機上的成功運用，其研製特點是： （ 1 ）在葉片氣動設計中為了降低葉根及葉尖區二次流損失，採用可控渦扭向規律設計，樣機實測的高性能驗證了這種方法的可行性和高效性； （ 2 ）在設計方法中採用較精確的數值反驗算，獲取最優設計方案，大大提高設計的準確性和成功率，並縮短了設計試制周期； （ 3 ）在設計過程中發展了計算機輔助三維葉片造型新方法，可以根據設計需要簡便快捷地對葉片進行「前傾」 、 「傾掠」或「彎掠」造型，這些造型對減小各種二次流損失、擴大穩定工況范圍和控制葉輪機氣動噪聲源起到了非常好的作用。As an important basic study platform, short - duration turbine testing plat form has developed in the mechanism research field and has now been applied to validation of new design concept and check of cfd software
同時，作為重要的基礎研究平臺，短周期渦輪實驗臺在機理研究領域也有所拓寬，開始被應用於新設計理念的驗證、 cfd設計分析軟體的校驗等新的領域。In practice, the initial state of the atmosphere is analyzed by taking a previous short - range model forecast, ingesting the latest meteorological observations to update the situation, and then starting a new forecast cycle
在業務運作上，大氣初始狀況的分析是利用最新氣象觀測資料訂正先前的短期模式預報，再進行新一輪的預報運算。分享友人