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- Near the midchord, the suction can provide a higher lift force for the airfoil. 吸氣孔位置在翼面的中部附近增升效果較好;
- To lift forcefully from beneath; heaveupward. 從底下猛力地提起;向上提升。
- To lift forcefully from beneath;heave upward. 從底下猛力地提起;向上提升
- To lift forcefully from beneath; heave upward. 從底下猛力地提起;向上提升
- The two wall jets collide with each other and turn upward to form an upwash fountain which increases the lift force of the upper plate. 包圍在噴射流與噴泉流附近的流體會(huì )被其帶入而在周?chē)纬蓴祩€(gè)渦流。
- Modern aircraft are so heavy that the wings must develop a very large lift force in order to sustain the aircraft. 現代的飛機很重,機翼必須產(chǎn)生很大的升力才能保持在空中飛行。
- It shows that thermodynamic and heat transfer processes have significant influence on the static lift force and flight control of an airship. 分析表明,飛艇上升過(guò)程中的熱力學(xué)和動(dòng)態(tài)傳熱過(guò)程對飛艇的浮力和飛行控制有重要影響;
- The diffuser helps contain the lift force while the wing brings considerable downforce onto the rear axle to maintain aerodynamic flow and stability. 擴散器可以幫助控制升力的機翼上帶來(lái)很大的壓力,后軸保持空氣流通和穩定。
- However,erroneous length of the slings is always found in practical works,causing non-ignorable effect on the lift force of the slings and the bending moment of the piles. 實(shí)際工程中各吊索間長(cháng)度總是存在偏差,因此會(huì )給吊索的吊力和樁身彎矩帶來(lái)不容忽視的影響。
- This compensates backward movement of the lift forces as shockwaves develop. 這樣補償了當激波產(chǎn)生時(shí)升力向后的運動(dòng)。
- Fluctuating lift forces are measured for staggered tube bank under two phase cross flow by a strain gauge. 采用電阻應變儀和脈動(dòng)升力測量裝置;在氣液兩相流橫向沖刷三排錯列排列的管束時(shí);對其受到的脈動(dòng)升力做了試驗研究.
- The calculation results demonstrate the effective eccentricity and the lifting force of the upper drill string are the major influential factors. 計算結果表明,有效偏心距和上部鉆柱的提升力是影響近井口套管偏磨的主要因素。
- An upward force must be exerted on it so as to lift an object. 要提起重物必須向它施加一個(gè)向上的力。
- Study of the Lift Force in Eddy Street Flowmeter 渦街流量計旋渦上舉力系數的研究
- Just as a rider's weight shifts can help sustain the equilibrium of a wobbly bicycle, actively balancing the lift forces on each wingtip is key to aircraft roll control. 騎自行車(chē)的人移動(dòng)重心有助于穩定搖晃的自行車(chē),就飛機而言也一樣,要控制滾轉動(dòng)作,關(guān)鍵就在于主動(dòng)平衡左右翼尖的升力。
- Some specific measure about reducing lifting force and yawing moment are advanced. 認為經(jīng)典升力理論遺漏了一個(gè)決定升力的重要因素:流體的壓強梯度。
- The fluctuate drag and lift forces of tree branches in wind due to vortex shedding were estimated using the vortex induced vibration theory of circular cylinder. 采用圓柱繞流的渦致振動(dòng)理論估算了樹(shù)枝在風(fēng)中因旋渦脫落而引起的脈動(dòng)升力和阻力;
- The paper introduces a new kind of vortex gas mass flowmeter, which can measure gas mass flow by testing the vortex frequency and the horizontal varying lifting force. 介紹了一種利用檢測漩渦頻率和橫向變動(dòng)升力的方法測量氣體質(zhì)量流量的漩渦式氣體質(zhì)量流量計。
- It's quite an effort to lift this heavy box. 抬起這只沉重的箱子要花費相當大的力氣。
- An airfoil produces a lifting force that acts at right angles to the airstream and a dragging force that acts in the same direction as the airstream. 翼型產(chǎn)生升力的方向與氣流成直角,阻力方向與氣流方向相同。