叶片速度下降将使法叶柔软，但叶片寿命也会减少。
Decreasing blade speed will make the blade act softer, but blade life will also decrease.
但是与飞机不同的地方在于，当直升机向前飞行时，空气是以不同的速度流过旋转的叶片的。
But unlike an aircraft, when a helicopter is flying forwards the air passing over its rotor blades does so at different speeds.
直升飞机那不停转动的旋翼叶片使其能够在空中悬停，但却限制了它向前的飞行速度。
Helicopters are limited in their forward speed by the spinning rotor blades that make hovering possible.
综合这些组成型的“荫蔽躲避综合征”植物就会增大它们的地上部生长速度同时将叶片向上移动。
Taken together these constitute the so-called shadow avoidance syndrome. They enhance the growth of shoots and the upward movement of the leaves (i.e. the hyponastic response).
分段连续环叶片是专为相同的任务，但在速度，性能和使用寿命提供了分歧。
Segmented and continuous rim blades are designed for the same task, but offer differences in speed, performance and longevity.
随着清洗槽内的叶片转动，清洗槽内的流场分布发生变化，相应的出水口附近的速度也发生变化，这样直接影响着清洗性能。
When the vanes rotates in the cleaning trough, they change the distribution of the flow field, and the velocity distribution near the outlet, so the cleaning property change directly.
叶片打开，或定，出于对风的控制转子的速度和保持转子从转折，在风是太高或太低，以产生电力。
Blades are turned, or pitched, out of the wind to control the rotor speed and keep the rotor from turning in winds that are too high or too low to produce electricity.
削弱的一种状况，其中叶片钢的核心速度比戴钻石段。
Undercutting is a condition in which the steel core of the blade wears faster than the diamond segments.
推荐表提供了安全运行速度和最高车速一系列叶片直径。
The table provides a recommended operating speed and a maximum safe speed for a range of blade diameters.
其次，分析了逼近模型，推导了单圆弧逼近方法，用这一方法来逼近叶片曲面，提高了逼近速度。
Secondly, analysed the approach model, described circular arc approximation method, approaching blade curved surface with this method and realized raise of the approach speed.
选项让您设定的速度和密度的叶片，以及速度，云和飞行物体。
Options let you set the rate and density of the leaves as well as the speed of the clouds and flying objects.
由计算结果分析了叶轮和无叶扩压器内部的速度、压力、马赫数分布，并和叶片扩压器进行了对比。
The velocity, temperature, pressure, and Mach number are analyzed according to the simulation result and the difference between vane diffuser and vaneless diffuser is studied.
而品种间切叶自然失水速度和叶片水分饱和亏的差异有待进一步研究。
The difference in the rate of nature lose water of cutting leaf and the water saturation deficit of leaf needed to be further studied.
本文作者定量分析计算由转轮有限叶片数引起的叶片出口相对速度分布状态，并以所获结果提出了改善叶片设计的措施。
The author of this paper analyzes and calculates the relative velocity distribution at the blade exit of runner caused by limited blades and offers the way to improve blade design.
透平机械中的叶片长度和叶尖线速度都不断提高。
The length and speed of blade became longer and faster accordingly.
建立有限元模型，对平板条叶片以不同角度和初始速度撞击矩形靶板的过程进行了数值模拟。
Numerical simulations of the course of the plate blade impacting target with the different angles and the initial velocity were performed based on the finite element model.
在相同叶轮出口速度下，叶片扩压器比无叶扩压器中气流速度下降迅速，叶轮出口处平均流场趋于均匀。
Under the same impeller outlet speed, the flow speed of blade diffuser is faster than the vaneless one. The average flow field at impeller outlet trends to uniform.
究竟是什么限制了直升机的飞行速度同时却能够让它盘旋呢？答案是流动通过直升机上方旋转叶片的空气。
What limits the speed of a helicopter is the same thing that allows it to hover-the air flowing over its spinning rotor blades.
实验证明通过改变叶片型线参数方程中的速度系数的取值，可以控制边界层的分离，进而改善泵的性能，提高其水力效率。
The experiment shows that by changing the velocity coefficient , the separation of boundary layer on pump vane can be controlled, and the performance of pump is improved and its hydraulic efficiency.
基于求得的速度和压力分布，通过积分可求得总推力和转子推力，并在尔后的设计阶段设计转子和定子的叶片。
Based on the distributions of the velocities and pressure the total thrust and the rotor thrust can be obtained by integration and the blades of rotor and stator can be designed.
系统通过控制螺距控制单元(10)的杆(28)操作，螺距控制单元依次控制引擎速度和螺旋桨(14)的螺旋桨叶片(12)的螺距。
The system operates by a lever (28) which controls a pitch control unit (10) which in turn controls engine speed and also the pitch of propeller blades (12) of propeller (14).
研究分析了不同的切削速度及进给量对叶轮叶片加工的表面粗糙度的影响。
The influence of different cutting speed and feed rate on the roughness of vane's finished surface was investigated and analyzed.
本文研究了叶片泵定子改进梯形加速度运动规律轮廓线型面靠模的加工问题。
This paper has solved problem of machining for the profile of the blade pump stator to improve trapezium accelerated motion regulation.
模拟得到了叶片式液压减振器模型在不同速度激励、油液温度下，相邻高、低压腔内压差大小及变化规律。
The pressure difference and change between high-pressure chamber and low-pressure chamber at different speed excitation and oil temperature are obtained.
早、中熟春大豆叶片的相对生长速度(RGR)至现蕾后30天即为较小或为负值，而迟熟类型则在现蕾后50天才出现负值。
Leaf RGR of early and medium ripening varieties was very small or even reached negative in 30 days after FBA while late type reached negative in 50 days after FBA.
这些品种与其它品种比较具有耐寒性差、耐高温性好、生长速度快、叶片光合效能强和产量突出等生理特性。
Compared with other maize hybrids, they are characterized by poor low temperature resistance, good high temperature tolerance, fast growth, high photosynthetic efficiency of leaves and high yield etc.
提出采用可控减速法设计离心风机两元叶片，即通过三维黏性流场计算，采用正交试验设计方法，以确定流道内平均速度的减速规律和叶片型线。
In the present method, the orthogonal design and the three-dimensional viscous flow field computation were used to determine the optimum controlled deceleration flow in impellers and the blade curves.
计算结果表明：使用导流叶片后，高压水通过喷嘴后具有了切向速度，并形成了较为明显的旋转射流。
Calculations showed that: with the guide vanes, the high-pressure water would have tangential velocity after it went through the nozzle and form more obvious swirling jet.
对于给定的叶片厚度分布和吸力面上的设计压力或速度分布，应用本文方法可求得满足设计要求的叶片几何形状和叶栅流场。
With the thickness distribution of a blade and the pressure or velocity distribution on its suction specified, the blade contour and the flow field of cascades that satisfy the gi…
模拟结果表明，叶片出口端部前缘，温度达到最大，颗粒的运动速度也达到最大值。
The results of this simulation showed that the maximum temperature appears at the tip of the blade. And the particle velocity will reach the maximum value at the end of the blade finally.
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