low drag 中文意思是什麼

low drag 解釋
低阻
  • low : adj 1 低的;淺的,矮的。 low flight 低飛。 a low temperature 低溫。 low tide [water] 低潮。 The g...
  • drag : vt ( gg )1 拖,曳;拖動,拖著(腳、尾巴等);硬拖(某人)做(某事)[至(某地)]。2 打撈,(用撈...
  1. For example, it can be used to drag make - up and solar pressure cancellation of low orbit spacecraft, formation flying and precise positioning of small satellite, repos

    同時, mpt也可用於低軌道( 300 500km )航天器的大氣阻力補償,星際航行航天器的主推進,以及星座和小型衛星的編隊飛行和精確定位等,具有廣闊的應用前景。
  2. Extreme ultraviolet radiation and x - ray created by magnetic field around the sunspots also cause the earth s atmosphere to heat up and expand. this will create additional drag to satellites or space shuttles orbiting at low altitudes and eventually pull them out of orbits earlier than expected

    太陽黑子附近的磁場所產生的遠紫外輻射和x射線,使地球大氣溫度上升並且膨脹,這對在較低軌道運行的人造衛星或太空梭帶來阻力,令它們比預期提早偏離軌道。
  3. The gear are usually relatively lightweight, and the two main gear can also be easily encased in streamlined fairings to produce low drag in flight

    后三點起落架通常重量都比較輕。兩支主輪子可以配置整流置用來減小飛行中的阻力。
  4. 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。
  5. 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。
  6. 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。
  7. Low viscous drag and high - speed capability : the low viscous drag of the magnetic fluid, and non - contacting seal configuration of the magnetic fluid feed through assure its extremely smooth operation and its high - speed capabilities

    低阻尼和高速旋轉能力:磁性流體極低的粘滯阻力和磁性流體進行給裝置無需接觸密封圈的結構,決定了它的穩定操作和高速轉動。
  8. A next - generation combat drone, for example, might loiter for hours above a potential target on elongated, low - drag wings

    舉例來說,新一代無人戰斗機就可運用外張的低阻力機翼,在預定目標上空盤旋數小時。
  9. The flowfield over low - drag and long - range projectile with small attack angle is numerically studied from transonic to supersonic velocity. it provides basic work for aerodynamics characteristic of this projectile and for lateral jet interaction flowfield, and it shows this projectile can decrease drag. zonal method is tried to compute flow over projectiles and results is satisfied, but computation is much slower

    系統研究了低阻遠程彈丸在小攻角狀態,低跨聲速、高跨聲速和超聲速時的非對稱繞流流場,為該彈形氣動力研究提供理論指導並為彈丸側噴流研究奠定基礎,結果顯示低阻遠程彈丸外形具有優化繞流場、減小空氣阻力的特點。
  10. The fact that grain of sand is fine or silty, with thin layer and little - scale scours means that the water energy was low. grain analysis tells its transiting character between turbulent flow and drag flow with the same character as sub - fan. in the core, every sequence is positive rhythm and debris flow that is not developed in delta was also found

    巖電關系分析表明,孔隙度與聲波時差成正相關關系,與自然伽瑪呈負相關關系,而滲透率與孔隙度具有較好的指數關系,據此建立了解釋模型,在測井數據標準化的基礎上進行了測井解釋,較為準確地反映了井點處的物性特徵。
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