drag length 中文意思是什麼
drag length
解釋
可控震源組合長度-
In the pointer trail area, drag the length slider
在「指針尾部」區，拖動「長度」滑桿。 -
In the thesis the low drag - low noise optimization of the vehicle main form design is realized, main accomplishments are as follows. researched the knowledge of drag and flow noise, the parameters of the boundary layer are calculated by the hess - smith method and boundary layer momentum integral method. the calculation of the length of transition zone and change in boundary layer displacement thickness between laminar and turbulent states in the transition is improved, then the drag coefficient and self - noise from the transition zone are calculated as the objective functions of the optimization
主要研究內容和成果如下：對航行器繞流流場進行分析，深入研究了阻力和流噪聲產生機理，建立了阻力系數和自噪聲的評估數值計算模型；採用物面分佈源匯法和邊界層動量積分法對繞流流場的流體動力參數進行計算，改進了轉捩區長度和邊界層位移厚度的計算，應用於航行器頭部駐點自噪聲的計算；最後設計了阻力系數和自噪聲數值計算程序模塊。 -
The belt drive provides a direct, smooth feel and virtually no drag while offering ease of maintenance by eliminating dedicated length cables
採用皮帶式驅動器，操作順滑安靜而穩定，比傳統式的纜繩耐用，節省維護次數和維修成本。 -
The 6. 8 mm remington spc is limited to relatively short bullets to fit within the maximum cartridge length of 5. 56 mm weapons, so the grendel has a shorter ( 39 mm ) and fatter case, leaving room for longer, low - drag bullets, which retain their velocity out to long ranges
8毫米的雷明頓spc缺少相配套的短彈頭使之合適於5 . 56毫米武器的最大彈藥筒尺寸，因此格倫德爾的彈殼更短（ 39毫米）更胖一點，為遠距離低阻彈頭留出空間。 -
Based on one dimension flow theory and lagrange method, the correlation of speeding rate of particles under gas flow drag with the size of particles and the length of laval nozzle used for the gas and solid two - phase separation test apparatus was studied
摘要採用一元流動理論和拉格朗日方法，研究了用於氣、固兩相分離試驗裝置的縮放噴管內，被氣流拖曳的顆粒加速率與顆粒大小和縮放噴管長度的關系。 -
And the results of the wake length, separation angle, and drag or pressure coefficient for low reynolds number are excellent agreement with previous experimental and numerical results
得到的低雷諾數下的迴流長度、分離角、阻力系數、壓力系數和現有的試驗或數值結果相比，都能良好吻合。
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