翼片的间隙导致环量的减小。
The space of wings results in decrease of circulation around each wing.
本文主要研究混流泵出口环量对泵出水管道水力特性的影响。
The influence of outlet circulation of mixed-flow pump on the hydraulic performance of the outlet pipe was studied in this dissertation.
对控制环量方法在离心叶轮准三元设计中的应用展开了研究。
This paper focuses on the application of method of controlled circulation in the quasi three dimensional design process of centrifugal impeller.
用速度梯度、压力梯度和环量梯度模拟大攻角尖前缘三角翼流场。
Velocity gradient, pressure gradient and circulation gradient are used to model the separated vortex flow field over a leading edge delta wing.
给出了机翼—挂架组合体的速度场,环量分布和外挂表面的压强分布。
The speed fields and circulation distribution of wing-pylon combination, and the surface pressure distributions of the stores are given.
然后在环量收敛与尾迹收敛的条件下,计算拉力以满足拉力收敛准则。
Then on the condition of circulation and wake geometry convergence, the rotor thrust is calculated to satisfy convergence criterion of thrust.
利用螺旋的升力线模型和变分法原理对螺旋桨叶片环量分布进行了数值优化。
The optimum distribution of circulation on a marine propeller blade is numerically determined by using the lift_line vortex model and variational calculus.
扩张角的增加可提高速度环量,但是流动混合损失增加,总压恢复系数减小。
The increase of lobe diffusion angle results in the increase of velocity circulation at the lobe exit section, but it raises the mixing loss and lowers the pressure recovery coefficient.
水轮机在偏离最优工况运行时,水流的环量会使尾水管中心产生低压并形成涡带。
In case of the turbine is operated departing the optimum condition, the low presure and the vortex band will be established in the draft tube centre by the flow circulation.
在逐点积分法一元理论叶片绘形的基础上,利用导叶水力设计程序设计了等环量叶片。
Based on point-by-point integration method and one dimension theory, designed the guide vane which has uniform velocity moment distribution with a hydraulic design computer code of the guide vane.
结合动量理论和涡流理论,推导了桨叶环量方程,用广义尾流模型计算了旋翼下洗流场。
Combining momentum theory and vortex theory, rotor circulation equation was deduced. The rotor down-wash flow field was calculated using generalized down-wash flow model.
展向环量的存在是扑翼飞行的特点,在扑翼飞行的仿生研究中必须注意对展向环量的分析。
The existence of spanwise circulation is a characteristic of flapping wi ngs. In biomechanics study of flapping wings, it is key to analysis of spanwise circulation.
提取外边界时采用环量积分算子,将环量线积分改进为微小圆环的面积分,克服了噪声影响。
We changed the curvilinear integral to surface integral in the thin ring around the curve so that the influence of the noise can be decreased.
本文从旋翼的广义经典涡流理论出发,通过环量对诱导速度的贡献的简化处理,推导出旋翼诱导速度的二阶分布。
In this paper, firstly, relations of first two harmonic induced velocities to the lower and same-order harmonic circulations are obtained from the generalized classical vortex theory of the rotor.
导出了二维浅水流动的涡动方程与速度环量的随体导数表达式,以此为基础,分析了二维浅水流动中旋涡的动力学性质;
The vorticity equation was first established and the characteristics of vortex motion in two-dimensional shallow-water flows was analyzed, and then discrete vortex method (DVM) was briefly described.
根据我们对R4环境中信号量问题的了解,我们在R5环境中采用以下战略来减少信号量问题。
Based on what we learned from semaphore issues in R4 environments, we employ the following strategies to minimize semaphore issues in R5 environments.
去年七月份的出口量十分惊人,但是今年七月的环比仍然猛增了38.1%。
But exports leaped 38.1 percent from an already strong showing in the same month last year.
总的来说,十月份进口量增长速度极为惊人,同比增长28.7%,环比增长20.9%,远远超过了九月份进口量。
Over all, imports rose a surprising 28.7 percent, compared with levels a year ago, far surpassing an increase in September of 20.9 percent.
环境光色反射由四周环境散射的光量,其方向无法指定。
Ambient color reflects light that been scattered so much by the environment that the direction is impossible to determine.
上海7月集装箱吞吐量同比下降了9%,环比上涨了7%,而深圳7月集装箱吞吐量下降了23%,环比回升了4%(季节调节后)。
Container throughput at Shanghai declined 9% YoY in July and increased 7% MoM, while Shenzhen declined 23% YoY in July and increased 4% MoM (seasonally adjusted).
虽然环比仍然急剧下降,4到5月份电子产品出口(根据季节性调整)与1到3月份月平均量相比上升了将近20%。
Although still down sharply year on year, electronics output (on a seasonally adjusted basis) in April-May was up by nearly 20% compared with the monthly average in January-March.
通过密封环槽和精确公差和径向膨胀的精确留量实现压缩的精确控制。
Accurate control of compression through close tolerance of gasket groove and allowance for radial expansion.
本文给出了一种计算无噪声时具有正弦鉴相器的二阶锁相环捕捉特性的新方法,求得了每个差频周期的平均角频率牵引量。
A new method is presented for analyzing the acquisition behavior of second-order PLL with sinusoidal phase detector in the absence of noise.
研究在不同温度、不同蒸汽添加量以及不同的压力环直径条件下,挤压膨化对大豆中脲酶活性的影响。
The influence of extrusion on activity of soybean urease was studied under different temperatures, different steam amounts and different pressure ring diameters.
推导了组合型密封环的压缩变形量及接触压力的计算公式。
The calculation methods of deformation and contact press force of sealing rings are derived.
本文对高含盐量环氧丙烷皂化废水生化处理适用的流程及最佳运行条件进行了研究。
Biological treatment process applicable to epoxy propane saponification wastewater with high salt content and optimum operation condition are studied in this paper.
基于环件几何模型导出了环件直径计算公式,建立了冷轧中环件直径与环件壁厚和轧制进给量之间的关系。
Based on the ring geometrical model, the calculation formulae of ring diameters were DE rived and the relations between ring diameters, thickness and the rolling feeding amount were established.
本文介绍一种具有速度显示,环缝搭接量精密控制的高精度焊接工作台。
The high Precision welding bench with speed display and control of girth lap behavior are described.
研究主理想环上模的矩量问题,包括矩量问题的存在性和唯一性。
This paper considers the moment problem for modules over principal ideal domain containing existence and uniqueness of solution.
研究主理想环上模的矩量问题,包括矩量问题的存在性和唯一性。
This paper considers the moment problem for modules over principal ideal domain containing existence and uniqueness of solution.
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