固定流导法采用的是分压力测量技术，对质谱分析室的漏放气率的指标要求不高。
Constant conductance method USES partial pressure measurement technology, which has no strict request to outgassing rate of mass spectrum analysis chamber.
在真空系统的设计中，一般涉及到流态判别、流导、泵的抽速和系统的压力等参数。
In design of a vacuum system, generally it concerns distinguishing the regions of gas flow, the conductance of tube, the pumping speed and the pressure of system etc.
根系径向流的水力学性质主要是根的径向水流导度，它取决于根径向水流通道的状况。
The radial hydraulic properties of root could be described as two components: radial hydraulic conductivity and water flow pathways.
推导了喂料熔体流导率的计算公式，得出压力场的控制方程是一非线性椭圆偏微分方程。
The pressure equation for the liquid phase is obtained as which is a no-linear elliptic partial differential equation.
所述蒸气流速取决于所述气化器的温度及位于所述气化器与所述真空室之间的机械节流阀的流导的设定值二者。
The vapor flow rate is determined by both the temperature of the vaporizer and the setting of the conductance of the mechanical throttle valve located between the vaporizer and the vacuum chamber.
该文介绍了油封机械泵的抽速与入口压力的关系、泵抽气效率下降的原因，指出泵入口管道的流导和油蒸汽逆流是造成泵抽速下降的主要原因。
Discusses the relationship between pumping speed and inlet pressure of an oil-sealed mechanical pump and the reason why its pumping efficiency drops down.
采用数值分析与模型实验相结合的方法，对水轮机导水部件双列环列叶栅流场进行了分析研究。
The flow field of double-row annular cascades of hydraulic turbines is studied by means of digital analysis in combination with model tests.
在导翼中自由振荡的球有利于全流道流动，最大限度减小湍流和振荡。
Free oscillation of ball in guide ribs facilitates full port flow with minimum turbulence and chatter.
本文采用辅助高压击穿与能量续流的触发电路来导通真空触发开关tvs，对触发过程中的触发能量和时延特性进行了分析和研究。
Analysis and research were done for the trigger energy and time delay characteristics in the triggering process, using the energy storage and pulse formation trigger circuit to switch on the TVS.
简要介绍灯泡贯流机组在安装过程中，导水机构整体吊装方法、受力校核及吊装翻身过程。
It briefly introduces the integral hoisting method of gate mechanism, stressing check and hoisting turnover process during the erection of bulb tubular turbines.
这也许正是根据现今应县—商河剖面上大地电磁的探测结果看不出来存在通常所说的反映“软流圈”电性特征的“上地幔高导层”的原因。
That is one of the possible reasons why there is no "high-conductive layer of the upper mantle" in the MT profile from Yingxian to Shanghe, which images the asthenosphere electrical characters.
该种微导能结构有效控制了聚合物熔融流延，获得了均一的封接面，可实现高质量精密封接。
The micro energy director can control the flow of the melting-polymer effectively and can obtain the uniform sealing surface and high quality precise sealing.
揭示了导叶内部回流、漩涡，以及出口流动滞止区、二次流等流动细节；
The details of the flow fields such as the backflow, vortex and secondary flow were revealed.
本文建立的水轮机固定导叶和活动导叶后卡门涡频率预估模型，可在设计阶段进行叶片绕流卡门涡频率的预估。
The vortices shedding frequency calculation model proposed by this paper can be used to predict the shedding frequency of the Karman vortices for hydraulic turbines design.
增设了导料装置，从根本上解决了物料的“反流”问题。
Material-leading installation was set up for solving problem about countercurrent.
利用这种方法不仅可以给出泥石流的运动过程并进行危险性分区，同时对检验泥石流排导槽工程的工程效益具有重要作用。
This method of debris flow simulation can not only display debris flow movement course and make debris flow risk zoning, but also can check the debris flow channel.
编制的计算机程序可用于计算固定导叶与活动导叶不同排比的流场。
A computer program is developed to calculate the flow field around the guide cascades with arbitrary ratio of stay and guide vanes.
而其排导措施要注意到此类泥石流的高阻力特征，注意保证排导槽的足够坡度。
And for the debris flow drainage channel building, it is important to know the high resistance principle of slope debris flow.
该方法是根据当地流活塞理论和片条理论导得的。
The analytical method is obtained by the local flow piston theory plus the strip theory.
本文建立的水轮机固定导叶和活动导叶后卡门涡频率预估模型，可在设计阶段进行叶片绕流卡门涡频率的预估。
The shedding frequency computation model built in this paper can be used to predict the shedding frequency of the Karman vortices for designing hydraulic turbines.
叶轮和导叶是轴流泵装置中的重要过流部件，而轴流泵后导叶(以下简称导叶)是泵内动能回收的主要部件。
Impeller and diffuser are important parts in the Axial-flow pump and the later is the important part to take back energy.
为改善巴山水电站溢洪道进水渠流态、提高泄流能力，通过一系列试验优化了溢洪道引水渠左导墙头部曲线型式。
To improve the flow pattern and discharge capacity of the spillway of Bashan Hydropower Station, the left guide wall's form of the spillway's entrance channel is optimized by series of model tests.
基于势流理论，考虑流场的可压缩性，首先利用积分变换导得了势流问题的一个动力学倒易定理。
A reciprocal theorem of dynamics for potential flow problems is first derived by means of the Laplace transform in which the compressibility of water is taken into account.
通过反馈电压控制可控硅的导通角来实现对工业大功率整流电路的恒流控制。
It's possible to control the industry powerful constant circuit of commutating circuit through controlling the guide circuit Angle of controllable silicon by feedback pressure.
使用FLUENT软件对某型跨音速涡轮叶栅的导叶进行了S_1流面的粘性流动计算。
The present paper computed the viscous flow of S_1 flow surfaces in some transonic turbine vane cascade by using the computational software FLUENT.
然后介绍了一、二次风速，旋流叶片的导角，一次空气比例系数等参数的选择及制造烧嘴的材料。
Selection of the primary and secondary airflow rate, the guide Angle of the blade, the primary air ratio as well as the material for manufacture of the burner nozzle are given.
本文介绍了利用流场显示技术对导叶端面间隙流态进行试验研究的结果。
The results of experimental study of flow pattern in the end clearance of guide-vane of water-turbine by means of visualization are presented in this paper.
本文基于理想不可压轴对称位流理论，导得纵向加速流绕椭球流动的精确解；
Based on the axisymmetrical potential flow theory of an invicid incompressible fluid, the exact solution of an longitudinally accelerated flow passing an ellipsoid was obtained.
漏斗排沙方式利用螺旋流的分离机理来排除渠道泥沙； 平轴螺旋管流排沙是利用在管间加设导叶的方式产生螺旋流来输运泥沙。
The way of the sand funnel make use of separating mechanics of spiraling flow to breed out the sediment of the channel.
漏斗排沙方式利用螺旋流的分离机理来排除渠道泥沙； 平轴螺旋管流排沙是利用在管间加设导叶的方式产生螺旋流来输运泥沙。
The way of the sand funnel make use of separating mechanics of spiraling flow to breed out the sediment of the channel.
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