流导,Conductance
1)Conductance[英][k?n"d?kt?ns][美][k?n"d?kt?ns]流导
1.Opinion about viscous flow conductance;气体粘滞流流导计算的意见
2.Two methods of measuring conductance are introduced under the condition of molecular flow,namely,with constant volume method and constant pressure method.在分子流条件下,给出了定容法和恒压法测量流导的方法,分析了测量不确定度。
3.The principle and method ofmeasuring conductance with PID constant pressure control mode and sawtooth variation constant pressure control mode are introduced.介绍了利用气体微流量计的流量测量技术、采用PID和压力锯齿波动2种恒压控制模式测量小孔流导的原理和方法,并对2种控制模式的测量结果进行了比对,一致性好于0。
英文短句/例句
1.current steering diode matrix电流导引二极管矩阵
2.TCSL (transistor current-steering logic)晶体管电流导引逻辑
3.flow straightener导流板,流体导向叶片
4.capable of or conducive to bloodshed.会流血或者导致流血。
5.An electric-power transmission cable.电缆传送电流的导线
6.(of a substance)allow(heat,electric current,etc)to pass along or through it（指物质）传导（热、电流等）
7.Water is a good conductor of electricity.水是电流的良导体。
8.hole-conductor current access device穿孔导体电流存取器件
9.an infectious disease often resulting in abortion; transmittable to humans through contaminated milk.导致流产的一种传染
10.sonar dome insertion loss声呐导流罩插入损失
11.exhaust stator blade【航空】排气导流叶片
12.fixed screw propeller shrouding定螺距螺旋桨导流管
13.converter, semiconductor, eletric半导体变流器,电动的
14.sonar dome loss pattern声呐导流罩损失图案
15.reverse conducting triode thyristor逆导三极晶体闸流管
16.choke flange coupling波导管扼流凸缘耦合
17.The electric current passes along the wire.电流沿着导线输送。
18.Electricity is flowing (in the circuit/wires).电在（电路[导线]中）流动.
相关短句/例句
flow conductance流导
1.It is al-so pointed out that the formulae of calculation of theflow conductance in physics of vacuurn are wrong be-cause of the incompressibility of the steady flow of viscous gas in conhadiction to the ideal gas equation.论述了目前真空物理中流导计算公式的错误及其原因。
3)diversion[英][da?"v?:?n][美][da?"v???n]导流
1.The pipeline crossing plan of cofferdam,diversion and deep-wide excavation is chosen finally by comparing it with other river crossing plans such as underwater trench digging and directional control drilling.兰成渝输油管道工程成渝段,管道沿线穿越的中小型河流都是U形断面河流,具有河岸与水面高差大、河两岸施工场地狭小等特点,通过对围堰导流大开挖穿越、水下成沟穿越、定向钻穿越等几种方案的分析,最终选定了围堰导流大开挖穿越方案。
2.The constructiondiversion of the Tankeng Hydropower Station has the characteristics of big discharge and quick flow speed on its overflow cofferdam.滩坑水电站施工导流过水围堰流量大,流速快。
4)river diversion导流
1.Design and construction methods onriver diversion and river closure for the Laxiwa hydro project on the Yellow River, developed based on the hydrologic, climatic, topographic and geologic conditions, are described.结合黄河上游拉西瓦水利枢纽工程的水文、气象、地形和地质等特点,论述了水利枢纽工程导流、截流设计及其施工方法。
2.Through the research and the implementation of the navigation of the d iversion channel in TGP, and under the conditions of hugeriver diversion discha rge and extremely high navigation stream, the diversion channel satisfied the tr ansit capacity of passenger and goods and successfully solved the key technologi cal problems of theriver diversion and the construction navigation.通过三峡工程导流明渠导流通航研究及实践,在巨大导流流量和极高通航水流条件下,导流明渠满足了客货轮的通过能力,成功地解决了弯道上明渠导流及施工通航的关键技术问题。
5)duct diversion导管导流
1.When water to be drained and dropping head o f foundation delve are small, filter diversion,duct diversion, well draining an d blind ditch diversion can be adopted.在工程建设中,降低地下水位辅助施工的方法很多,当基坑降水量及降水深度不大时,可采用反滤层导流、导管导流、机井排流、盲沟导流这几种简易方法。
6)guide wall导墙;导流墙
延伸阅读
动态流导法真空标准装置动态流导法真空标准装置vacuum standard system by continuous flow through an orifice由ngtai liudcofa zhenkor均bicozhun zhuan平hi动态流导法真空标准装t(vac~stand山dsysteyn场continuous flowthI’OL吵an orifice)又称小孔法或泻流法，是由动态平衡产生已知压力来对泵乃夕 单级动态流导法标准装1原理示意图真空计G进行校准或分度的方法。图为单级动态流导法标准装置的原理示意图。由可调针阀引人到校准室的流量为口的气体通过流导为c的小孔到抽气室，最后被抽速为S的真空泵抽走。当进人校准室的气体量与通过小孔被抽除的气体量相等时，校准室内有一平衡压力p，相应地，抽气室内有一平衡压力p。。若s》c，则p》p。。可根据气体等温连续性原理，得到p的计算公式为:P=Q/C小孔流导C值，在分子流条件下可根据其几何尺寸算出。由针阀调节的不同流量Q(用流量计侧得)，在校准室内可得到不同的p值。通常要求泵的抽速S远比小孔的流导C值要大，以减少抽速测定值误差的影响及抽速波动的影响。采用多级小孔分流的设计可扩大校准下限。动态流导法只适用于分子流条件，即气体分子之间碰撞几乎不存在的情况，这也是该法校准上限受限制的原因。动态流导法的优点在于减少了被校真空计规管的吸放气效应的影响，是目前高真空和超高真空范围的主要的校准手段。中国建立的动态流导法真空标准装置的测量范围为10一’Pa一10一ZPa，扩展不确定度在10一“Pa一10一ZPa时为5%，在10一，Pa时为10%。(转葱丈)
