查询词典 fluid dynamics

According to the request of adopting advanced technology, the main designing has such contents as below:⑴ Designing the two-fluid nozzle that is based on the theory of air-atomize spraying.⑵ Designing and choosing the type of the axial fan that is used to supply assisted airflow to waft droplets that comes from nozzle.⑶ Designing the swaying outfit that can rotate the spray assembly at a speed and inside a angle in order to satisfy the spray request of different crops, different planting states and improve the uniformity of distribution, the deposition of droplet. Here, we select TYV type reduction gear motor to adjust the swaying speed and use course switch to adjust the swaying angle.⑷ Designing the lift outfit that can adjust the height of the spray assembly to satisfy the request of the crops of different tallness, different spraying range. Here, we select cylinder as the main component that can be used as kickstand and controlled easily.⑸ Designing the switch of the power supply that is put out of the greenhouse in order to prevent worker from poisoning. After the mist sprayer being made, the experiment is made to test the function of the greenhouse mist sprayer fully.

根据采用先进施药技术的要求，本研究的设计内容主要有：⑴采用气液两相流喷雾技术，基于气力雾化原理，设计双流体喷头；⑵采用辅助气流输送雾滴，气流源为风机，对风机进行设计、选型；⑶为满足不同作物、不同栽培情况及提高雾滴分布均匀性、沉积性的施药要求，设计能带动喷射部件在一定角度内、以一定转速的旋转摇摆机构，本研究选用调速电机调节其摇摆速度，并利用反向行程开关调节其摇摆角度；⑷为满足不同高度作物、不同射程的施药要求，设计能调节喷射部件高度的升降机构，这里选用气缸为主要构件，既可以起到整机支架的作用，又可方便进行升降、固定控制；⑸设计行程开关的控制电路以及整机的控制系统。

Under maximal flux (Vi = 4.3 m/s),fluid field of 16 cross sections in the model were investigated, the tangential velocity empirical equation of each partition was got, and empirical equations of axial and radial velocity on the ring partition between baffle bar and cylinder wall were obtained.

在全气速（Vi = 4.3 m/s）下测得了流场中各部分共计16个截面的流场分布，分别拟合得到各区域外旋流中切向速度分布经验公式；拟合得到在导流体与筒壁间环形段轴向速度分布和径向速度分布经验公式。

In the 15 patients with type Ⅱinjury, 8 had marrow edema in adjacent bones (53%), 6 had abnormalities in the sinus tarsi (40%), 8 had fluid in the tendon sheath (53%), 9 had fractures of the ankle or foot (60%), respectively.

在 15例Ⅱ型胫后肌腱损伤的病例中，8例(5 3 %)有邻近骨的水肿，6例(4 0 %)有跗骨窦异常改变，8例(5 3 %)有腱鞘内积液，9例(60 %)有踝关节或跖距骨的骨折。

Abnormalities in the sinus tarsi (40%), 8 had fluid in the tendon sheath (53%), 9 had fractures of the ankle or

在 15例Ⅱ型胫后肌腱损伤的病例中，8例(5 3 %)有邻近骨的水肿，6例(4 0 %)有跗骨窦异常改变，8例(5 3 %)有腱鞘内积液，9例(60 %)有踝关节或跖距骨的骨折。

Union Kudzu root own characteristic, before the fermentation increases the few amylases, the maltogenic amylase carries on a series of optimized processing to the Kudzu root, the acceleration microorganism fermentation, causes in the black glutinous rice, the Kudzu root the flavanone and so on the beneficial material full dissolution inside the fermented alcohol fluid, develops the wine taste tastily, unique, does not have the unusual smell, and includes certain flavanone material black glutinous rice Kudzu root liquor.

结合葛根自身特性，发酵前添加少量淀粉酶、糖化酶对葛根进行一系列优化处理，加速微生物发酵作用，使黑糯米、葛根中黄酮等有益物质充分溶解在发酵酒液里面，研制出酒味爽口、独特、无异味，并含有一定黄酮物质的黑糯米葛根酒。

Main Curriculums: Higher Mathematics, Engineering Mathematics, College Physics, English, Descriptive Geometry and Building Cartography, Program Design and Arithmetic, Introduction to Java, Network Database, Numerical Analysis, Tensor Analysis, Specialty English, Document Retrieval and Utilization, Introduction to Mechanics, Theoretical Mechanics,Mechanics of Materials,Structural Mechanics,Computational Mechanics and Engineering Software, Theory of Plate and Shell, Theory of Elasticity, Composite Mechanics, Advanced Structural Mechanics,Plastic Mechanics of Structural Engineering, Fluid Mechanics, Experimental Mechanics, Vibration Theory, Soil Mechanics and Foundation, Steel Structures, Concrete Structures, Engineering Construction and Engineering Estimate, Engineering Signal Analysis and Processing, CAD of Structure, Design of Structural Optimization, Modern Testing Technologies.

专业课：高等数学、工程数学、普通物理、英语、政治、画法几何及建筑制图、程序设计与算法语言、Java基础、网络数据库、数值分析、张量分析、专业英语、科技文献检索、力学概论、理论力学、材料力学、结构力学、计算力学与工程软件、板壳理论、弹性力学、复合材料力学、高等结构力学、结构工程塑性力学、流体力学、实验力学、振动理论、土力学与地基基础、钢结构、混凝土结构、工程施工与概预算、工程信号分析与处理、结构CAD、结构优化设计、现代测试技术等。

As for models of hydraulic behavior, this paper makes a thorough study on aperture of rock joins、the number of open cracks after heating in rock mass、the fracture interconnectivity、tectonic stresses、the dilation due to shear sliding and chemical composition, and utilize fluid permeability tensor proposed by Oda, the tensor field of permeability in the fracture rock mass with coupled THM properties is derived.

在裂隙岩体力学模型方面，利用0'Connell建立的干裂隙岩体等效弹性模量与岩石模量的关系式，并由式中的裂隙密度概念意义，建立了温度作用下的裂隙密度与Oda提出的裂隙张量之间的关系式。

I am also 38 weeks to check the time of acute increase in the amniotic fluid, doctors said could lead to acute fetal teratogenesis, it is proposed that I go according to a three-dimensional color Doppler ultrasound, we did not go because my child a lot, although the fetal position well, but doctors or suggested that I open, the sooner the better.

我也是38周检查的时候急性羊水增多，医生说有可能会导致急性胎儿致畸，所以建议我去照个三维彩超，我没有去，因为我的胎儿很大，虽然胎位很好，但医生还是建议我剖腹，而且越快越好。

Settling velocity or fall velocity or terminal velocity of a particle is the rate at which the sediment settles in still fluid.

一种微粒的沉淀速率或者叫下降速率或未速是微粒在静止液体内的沉淀速率。

Given bed slope as well as the fluid and sphere's properties, the terminal velocity and distance can be directly determined from the graphs.

当底床倾角、流体与球体特性给定时，藉由此图可直接推算终端速度与终端距离。

Finally it offers the analysis of the fault-tolerance system as well as its test verification.

这样，运行于空间环境中的系统的设计目标就是在保证系统实时性

However, it is still difficult to find out the real reason of the increase of the keratinized gingiva during the orthodontic extrusion whether it is due to the proliferation of the gingival tissue or to its elastic nature, that is because the proliferation of the fibroblasts as well as the connective tissue changes in volume and the intra-fibers spaces were all immeasurable in most of the studies.

然而，仍然难以找到真正的原因增加的角化牙龈在正畸挤压它是否是由于扩散的牙龈组织或其弹性性质，这是因为增殖的成纤维细胞以及作为结缔组织的变化量和内部纤维空格都是不可估量的，大多数的研究。