轴流

By one dimension LDV, the distribution of axial velocity in the swirling field given was measured.

采用一维多普勒激光测速仪，测量了旋流流场的轴向速度分布，根据LDV测量值，建立了描述所给旋流场的数学模型。

The medium is water and the inner flow field of vortex pump is rotating flow with constant angular velocity, three dimensional, and incompressible turbulent flow.

数值模拟计算选取工作介质为清水，并认为是牛顿流体且局部各向同性；认为旋流泵的内部流场是以定常角速度绕固定轴的旋转流场，属于复杂的三维不可压湍流流动。

Fixed detector data of Shenzhen is used to reveal time-varying rules of traffic flow parameters during workday, weekend and holiday as well as its fluctuation degree within 24 hours. Similarity coefficient and fluctuation coefficient are cited to show the covariation and fluctuation degree of traffic flow on different days.

以检测器数据为对象进行分析，揭示了交通流参数在工作日、周末和节假日三类时间的不同变化规律以及交通流参数在一天中的波动程度；引入相似系数和波动系数，研究了各天的交通流参数在时间轴上的变化趋势的相似程度以及各天之间的波动程度。

On the respect of partially-premixed combustion research, we systematically studied the structure of partially-premixed flames in counter-flow and coaxial jet flow by using direct calculation and flamelet modeling.

在部分预混燃烧研究方面，本文结合火焰面模型和直接求解的方法，在对撞射流流场和同轴伴流流场中系统研究了部分预混火焰的结构特征，提出以预混燃料的当量比和当量混合标量耗散率作为描述部分预混火焰结构变化的参量的观点，并比较了它和非预混火焰的异同。

After analyzing the radial and axial temperature distribution of CMT, the primary result has been concluded: With the same initial pressure of the CMT drainage with sparger, the higher the average temperature of CMT fluid is, the shorter the disturbing time, and the large the temperature difference of the top and bottom layer fluid.

对实验测得的CMT径向和轴向温度分布进行了分析，发现在PRZ初始压力相同时CMT无遮流板排水，其扰动时间随CMT液体平均温度的升高而减少，上下层液面温差随之变大；加遮流板后对凝结和温度平衡时间起主要影响的因素有两个，即遮流板以上液体的温度与PRZ的初始压力大小。

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 this paper, The delta wing of Mach number 0.8 at an attack angle of 21. 8 degree is simulated by our program. Then, using the visualizing program, we map the figures of space streamlines, cross streamlines near the vortex axis, three dimensional vortex lines, cloud atlas for pressure and vortex and targer of particles.

在这一章里，我们先用所建立的计算软件数值模拟了来流马赫数为0.8、攻角为21.8°的三角翼的流场，之后以拓扑分析结果做指导，研制了一套数值显示流场、旋涡结构的软件，用该软件我们绘制了跨音速三角翼背风区涡轴附近截面流线、空间流线、三维涡量线、压力和涡量云图以及粒子屏痕图。

At the same time, in the inner unsteady flow-field of vaned and vaneless diffuser, as well as gap between impeller and diffuser has been measured by PIV. The measurement plane is at z=10, 15, 20mm in axial direction from impeller shroud.

对叶轮和扩压器在靠盖侧、跨盘盖中间流面、靠盘侧三个流面，即轴向位置分别为Z=10mm，Z=15mm，Z=20mm三个流面上的速度场进行了实验研究。

The feeding head can rotate around axial Z and axial X or Y. With the help of Siemens NC system, which can overcome the limitations of feeding heads working space, we can make axle sleeve and so on. It can be used to repair irregular shape products in laser cladding, such as metallic sheath. Using 3D coaxial feeding head, large area laser refabrication was carried out in metallic sheath.

由于原数控系统是非开放性的，不宜直接在原有系统上进行二次开发，考虑到现有条件，采用单片机控制二步进电机以实现送粉头能绕Z轴转动和绕水平轴转动，加上原有数控系统的在Z轴方向上的运动配合使送粉工作头具有三维空间工作能力，它克服了普通送粉头工作空间的限制，同时还具有粉末流束焦点可调功能。

Pump: RCDL / RCDLF standards for the installation of the electrical non-self-priming vertical multi-stage centrifugal pumps, electrical axis through the pump head and shaft connected by coupling, rod bolts to cylinder pressure, over-current components in the pump head and out of fixed paragraph water between the pump inlet-outlet in the same line.

泵： RCDL/RCDLF为安装标准电机的非自吸立式多级离心泵，电机轴通过泵头用联轴器与泵轴联接，拉杆螺栓将耐压筒、过流部件固定在泵头和进出水段之间，泵进出水口在同一直线上。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。