selection by wheel 中文意思是什麼

selection by wheel 解釋
車輪選擇
  • selection : n. 1. 選擇;挑選;選拔。2. 拔萃;選擇物;精選物[品];文選。3. 【無線電】分離,(自動電話)撥號。4. 【生物學】選擇,淘汰。
  • by : adv 1 在側,在旁,在附近。2 (擱)在一邊,(放)到旁邊,(存)在一旁;收著。3 (由旁邊)經過,過...
  • wheel : n 1 輪,車輪;輪狀物。2 〈口語〉腳踏車;【造船】艙輪;(汽車的)方向盤,駕駛盤;(制陶)轉盤;紡...
  1. Then, only a given curve satisfied by the conditions of import and outlet of vane wheel as its modular curve will neglect the middle varying processes of in vane wheel, which reflect microscope properties in some degree - flow properties in boundary layer. leading into the velocity - coefficient unifies the boundary layer and eular theory in the design process of vane, which extends the area of selection of vane ' s curves and provides a valuable object function for the optimization design of vane

    那麼,僅憑一條預先給定的滿足葉輪出入口條件的曲線去來作為葉輪的型線,它必將忽略了這種除了葉輪出入口之外的中間變化過程,而這種中間變化在某種程度來說又反映出微觀特性? ?邊界層流動特性;速度系數的引入,它使邊界層理論和歐拉理論在泵的葉輪設計過程中得到統一;它使選擇葉片曲線的域圍拓寬;它也為葉輪的優化設計提供了一個很有參考價值的目標函數。
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