航行阻力 的英文怎麼說
中文拼音 [hánghángzǔlì]
航行阻力
英文
running resistance- 航 : Ⅰ名詞(船) boat; shipⅡ動詞(航行) navigate (by water or air); sail
- 行 : 行Ⅰ名詞1 (行列) line; row 2 (排行) seniority among brothers and sisters:你行幾? 我行三。where...
- 阻 : 動詞(阻擋; 阻礙) block; hinder; impede; obstruct
- 力 : Ⅰ名1 (力量; 能力) power; strength; ability; capacity 2 [物理學] (改變物體運動狀態的作用) forc...
- 航行 : 1 (水中行駛) navigate by water; seaway; sail 2 (空中行駛) navigate by air; fly 3 voyage; 航行...
- 阻力 : 1 (阻礙事物發展的外力) obstruction; resistance 2 [物理學] resistance; drag; drag force; nowel; ...
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一流科技力量為您提供航天用含氟電線電纜電力電纜耐熱防腐硅橡膠電纜耐高溫電纜控制電纜計算機網路電纜補償用電線電纜船用電纜橡套電纜阻燃防火電纜等十六大類,一千多種規格產品,並可根據擁護特殊要求,自行設計生產,以滿足顧客要求,多年來「宏源」牌電線電纜廣泛用於航空航天國防軍工電子原件電力石化鋼鐵冶金公共設施環保建築等領域,深受廣大用戶高度評價和信賴。A friction drag testing system for the underwater axi - symmetrical vehicle model
一種軸對稱水下航行器模型摩擦阻力測試系統The paper analyzes and compares the concept, process and knowledgeable system of systems engineering of china ' s aerospace industry and modern project management, pointing out the obstacle of the current management system must be overcome. meanwhile the paper suggests that much attention should be paid to some aspects
對此,本文研究了中國航天工業系統工程的主要內容、方法和現代項目管理的概念、過程、知識體系,並進行了比較,分析了應用項目管理要克服的巨大阻力,提出了要特別注意加強的工作。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。Secondly, we discuss the resistance prediction methods for planning hulls and select the savitsky method to calculate the trim of a ship
然後討論目前對滑行艇、半滑行艇的阻力預報方法,選取savitsky法( sit法)來進行航行縱傾角的計算。The radiation condition is satisfied numerically with collocation points shifting upstream. as applications of the method, flow around a 3 - d body, the wave pattern and wave resistance of a ship are solved. the encouraging numerical results are achieved
本文運用該方法計算了三維物體的繞流、興波波形和興波阻力,給出了wigley 、數學swath船型定常直航運動時的興波波形和興波阻力,其結果與實驗結果、理論結果進行了比較,結果比較令人滿意。In technique rebuilding of system, discharge curve of ni - mh battery was measured, and power supplies in uav were improved. the security, adaptability and efficiency of miniature aerial rs systems could be improved obviously by microwave video transmission system and self - regulating blocking net in landing
在對系統的技術改造中,測定了ni - mh電池組放電曲線,對無人機機載電源做了改進,配合加裝的微波視頻傳輸系統和自行研製的降落阻尼攔阻網可以大大提高無人機航空遙感系統的安全性、適應性和作業能力。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。Increased radiation from the sun and occurrence of geomagnetic storms i. e. severe distortion of geomagnetic field of the earth may cause disturbances such as increases in density in the earth s upper atmosphere. these result in a greater drag on the movement of satellites and spacecraft, causing a slow - down or even a change in orbit
輻射的增加及地磁暴即地球磁場急速變形的出現,會導致地球上層大氣的擾動,例如空氣密度的上升,從而使衛星和太空船在航行時受到的阻力大增,航行速度因而減慢,甚至軌道亦會改變。Increased radiation from the sun and occurrence of geomagnetic storms ( i. e. severe distortion of geomagnetic field of the earth ) may cause disturbances such as increases in density in the earth s upper atmosphere. these result in a greater drag on the movement of satellites and spacecraft, causing a slow - down or even a change in orbit
輻射的增加及地磁暴(即地球磁場急速變形)的出現,會導致地球上層大氣的擾動,例如空氣密度的上升,從而使衛星和太空船在航行時受到的阻力大增,航行速度因而減慢,甚至軌道亦會改變。Our production of magnesium hydroxide modified surface treatment products, high purity, particle size uniform dispersion of good, strong affinity, are halogen - free, smoke - free, no drops, non - toxic, the safety of flame retardants, rubber, plastics, rubber, engineering, electrical appliances, wires, cable, cable sheathing, thermoplastic materials, insulators, surge arresters, synthetic textiles, fire retardant paint, ink, paper, conveyors, mine ventilation duct, electronic appliances equipment, tarpaulins, tents, military, aerospace, shipbuilding, automobiles, steel products, such as the glass industry ideal fuel filler - type resistance
我公司研發生產的改性表面處理氫氧化鎂系列產品,純度高、粒徑均勻、分散性好、親和力強,屬于無鹵、無煙、無滴、無毒性、安全性的阻燃劑,是橡膠、塑料、橡塑、工程塑料、電器、電線、電纜料、電纜護套、熱縮材料、絕緣子、避雷器、化纖紡織、防火塗料、油墨、造紙、運輸帶、煤礦風筒、電子電器器材、蓬布、帳篷、軍事、航空航天、造船、汽車、玻璃鋼製品等各行業理想的填料型阻燃料。The transient state of torpedo electrical drive system, caused by torpedo ' s steding, shifting, and the fluctuation of battery voltage, and the change of the resistance in voyage, will influence efltire attitude and stability of the torpedo immediately, as well as every parts of electrical propulsion system. therefore, it is necessary to theoretically analyze the transient state of torpedo electrical power propulsion system
魚雷電動力推進系統在魚雷啟動、變速及因電池電壓的波動和在魚雷航行阻力變化時而產生的暫態過程都將直接對整個魚雷的姿態和穩定性產生影響,同時對電動力推進系統本身各個組件也將產生不同影響,因此有必要對魚雷電動力推進系統的暫態過程進行一些理論分析。In this paper, a theoretical investigation of the drag reduction for underwater submarine by riblet biomimetic non - smooth surface and microbubble carried out, the prime mechanism of two drag reduction technology is open out, and provide theoretical foundation for engineering, which proved efficiency of thruster
粘性摩擦阻力在低速前進時對航行器的阻力起主導作用,而在高速航行時壓差阻力是主要的,因此在設計當中綜合考慮了兩方面因素,使表面結構具有雙重減阻特性。A major technological challenge is to reduce this drag in order to minimize the energy needed to transport fluids like oil in pipelines, or to move ships in the sea or aeroplanes in the air
科技上一個重要的挑戰便是如何減低湍流流動中的阻力,從而減省運輸流體(如原油) 、以及船隻和飛機航行時所需要的能源。分享友人