查询词典 ledger blade

Based on the full three-dimensional numerical simulation for the centrifugal pump, an optimal mathematical model of blade curve is set up. In this model, the object function is the minimum length of the blade curve; the constraint condition is no recirculation atr=0.5. This model makes the design of optimum blade curve efficient.

在对离心泵内部流场进行全三维数值模拟的基础上，建立了叶片型线优化设计的数学模型以叶片长度最短为目标函数，叶轮相对半径，r=0.5处无回流为约束条件，讨论了该模型优化计算的方法。

By range analysis of the orthogonal designing scheme, the sequence affecting pump head and efficiency of the four main factors were obtained, the number of short-blade, the deflection angle, the bias angle in peripheral direction, the radial inlet position and the number of short-blade, the radial inlet position, the bias angle in peripheral direction, and the deflection angle, meanwhile the best design scheme of short-blade was given.

通过对正交设计方案结果的极差分析，得出各因素水平对扬程和效率影响的主次顺序分别为短叶片数、偏转角、周向偏置度、径向进口的相对位置和短叶片数、径向进口的相对位置、周向偏置度、偏转角，从而得到超低比转速高速离心泵复合式叶轮短叶片的最佳设计方案。

The blade fixes glass by blade clip on the frame., the frame. does not need to hold the flute or the rabbet, by the fact that worm gear , the worm control organization but the need adjusting the blade angle arbitrarily , satisfying the different ventilation.

玻璃叶片通过叶片夹固定在框架上，框架不需要开凹槽或槽口，通过蜗轮、蜗杆操纵机构可任意调节叶片角度，满足不同的通风需求。

Through the analysis of the experimental and numerical calculation values, hereinafter gives the description of the characteristics of the flow and heat transfer within the rotating blade cavity. Influenced by the inflow structure and the centrifugal force, the air flow rate on the top of the blade is bigger than that at the bottom, therefore, there exists radial component velocity which may make the buoyancy force weaken the heat transfer behavior of the blade.

通过实验和数值计算的结果的分析，发现气流在旋转叶片腔内的一些流动和换热特征：在进口流动结构影响和离心力的作用下，使得叶片顶部的气流流量大于底部的流量，因此流体存在径向分速度，可能是这种径向分速度造成浮升力对叶片的换热起降低的作用。

This text proceed with the theory of the vibration, utilize typical elastic hinge law analyze structure dynamics characteristic when the blade is quivered to instability, and then use relevant knowledge of blade vibration to simplify the model and the aerodynamic force of the vibration. Through the simplification, we can get the equation of the blade, which is dispersed to its instability. Then VISUAL BASIC procedure is utilized to work out thecharacteristic value of vibration and the vibration frequency. At last comparing the result which is calculated by the above-mentioned theory formulae with the result which is calculated by internationally agreed procedure ANSYS to verify the accuracy of the formula of reduction.

本文从振动理论入手，利用最为典型的弹性铰链法分析叶片发生颤振失稳时的结构动力学特性，然后对振动模型及振动时所受的气动力进行简化，利用简化方程得到叶片发生发散失稳时的振动方程，利用编制的VISUAL BASIC程序解出振动的特征值并得到振动频率，最后分别通过上述的理论公式和国际通用的有限元程序ANSYS对风力机叶片模型进行发散失稳时的频率计算，验证简化公式的准确性。

Further, each blade has, in the radial direction, a sweepforward wing portion situated on the boss side and exhibiting a positive advance ratio value, and a sweepback wing potion situated on the outer peripheral side of the blade and exhibiting a negative advance ratio value, with the arc length of each blade increasing from the boss side toward the outer peripheral side.

并且，叶片(4)具有轮毂侧的前进叶片部(2)和叶片的外周侧的后退叶片部(3)，前进叶片部在半径方向上具有前进率为正的值，后退叶片部具有负的值。

In order to do the geometric shape analysis for each feature of the turbine blade effectively, the density measurement data of the turbine blade with complex topological structures should be segmented into relatively simple sub datasets according to blade structure.

为了有效进行涡轮叶片各结构特征的几何尺寸分析，需要对涡轮叶片的测量数据进行分割，把具有复杂拓扑结构的空心涡轮叶片的测量数据分割成简单拓扑结构对应的测量数据子集。

An article such as a blade fabricated from a plurality of high-strength, reinforcing filaments embedded in a matrix material and characterized by a portion of the filaments oriented transverse to the blade longitudinal axis in a direction through the blade to enhance transverse shear strength.

一篇文章如刀片编造从一个多元化的高强度，加强丝嵌入在一个矩阵的物质和特点是部分的长丝面向横向到叶片纵向轴的方向，透过叶片，以加强横向抗剪强度。

Kind carotene is the lubricious source that makes blade presents orange, cyanine element is the lubricious source that makes blade presents red, xanthophyll is the lubricious source that makes blade presents yellow.

类胡萝卜素是使叶片呈现橙色的色源，花青素是使叶片呈现红色的色源，叶黄素是使叶片呈现黄色的色源。

II unscrew the blade being outside of the tool so that the blade bolts gently touch pad after so-and-so down bolts, turret (tool box or cameupto coilia gubernacular), opinins blade placed wooden sword.

拧松刀片露在刀座外的螺栓，使刀片轻轻接触垫板后再拧下螺栓，刀架升到原来位置，将刀片取下放在木制刀盒内。

Objective To study the effect of chitosan in the prevention of fibrous scar formation in the epidural space after laminectomy.

目的 观察选择性脊神经后根切除术椎板切除后硬膜外几种防瘢痕粘连物质的作用并探讨其机制。

On his way to the lift, he looked back to us or was it me his eyes pointing?

当他要进电梯时，他回头看我们（或者说是我，他的眼光？