查询词典 flow resistance

The company is mainly engaged in development, manufacturing, sales instrumentation, instrumentation control valves, wire and cable, cable tray, electrical control cabinets, instrument panel and the optical fiber and cable and other products, after years of product structure adjustment, and has formed WZ series instrumentation including thermal resistance, WR Series thermocouple, WSS series bimetallic thermometer, SWB temperature transmitter, pressure gauge, TYB pressure change delivery device, UHZ level gauge, level transmitter, speed transducer and flow transmitter, instrument control valves, temperature, pressure, flow, speed, level series fieldbus instrumentation products; wire and cable including power cables, high temperature silicon rubber cables, inverter cables, control cables, computer cables, cross-linked power cable, ACSR, fire-retardant cables, heating cables, railway signaling cable, fire cable, marine cable, wire compensation, compensation cables, cable tray series wire and cable products; communications center beam tube fiber optic cable, including fiber optic cable, twisted layer type optical cable, ribbon cable, ADSS fiber optic cable and wiring products; business for many years was rated "provincial contract Shou credit advanced enterprises "," provincial advanced enterprises to pay taxes according to law "," Bank Credit AAA Grade Enterprise "," provincial-level high-tech enterprise "," China Electronics hundred enterprises "," National Association of temperature instrumentation "," National Cable exemption Products "and other honorary titles.

公司主要从事开发、制造、销售仪器仪表、仪表管阀件、电线电缆、电缆桥架、电气控制柜、仪表盘和光纤光缆等产品，经过多年的产品结构调整，已形成仪表包括WZ系列热电阻、WR系列热电偶、WSS系列双金属温度计、SWB温度变送器、压力表、TYB压力变送器、UHZ液位计、液位变送器、速度变送器和流量变送器、仪表管阀件、温度、压力、流量、速度、液位现场总线等系列仪器仪表产品；电线电缆包括电力电缆、高温硅橡胶电缆、变频电缆、控制电缆、计算机电缆、交联电力电缆、钢芯铝绞线、阻燃电缆、伴热电缆、铁路信号电缆、防火电缆、船用电缆、补偿导线、补偿电缆、电缆桥架等系列电线电缆产品；通信光缆包括中心束管光缆、层绞式光缆、带状光缆、ADSS光缆及其配线系列产品；企业连续多年被评为"省级重合同守信用先进企业"、"省级依法纳税先进企业"、"银行资信AAA级企业"、"省级高新技术企业"、"中国电子百强企业"、"全国温度仪表协会理事"、"国家电缆免检产品"等荣誉称号。

Air resistance of counterflow closed circuit cooling tower is detailed tested, air flow regularity inside of the new tower is discussed and air flow characteristics through cooling bundle of tubes is analyzed.

在该实验台上详细测试了在封闭式冷却塔内空气与水逆向流动条件下，空气流经冷却盘管的阻力，探讨了封闭式冷却塔内空气的流动规律，分析了空气流过正三角排列管束的特性。

In curve fitting, the speed-flow rate curve shows that the curve of 16mm pitch wheel is a line and that of 12mm pitch wheel is a down-winding curve, the speed-pressure curves of two pitches both are up-winding curves and in the resistance-flow rate curves the curve of 12mm one has lower slope than that of the 16mm one.

曲线拟合结果显示，在转速-流量曲线中，16mm螺距叶轮为一直线，12mm螺距的叶轮为一向下弯曲的曲线；转速-压力曲线显示两者都是向上弯曲的曲线；阻力-流量曲线显示12mm螺距的叶轮斜率较小。

Regarding the frequent occurrence of speed stalling of boiler axial flow primary fan in the operation of 600 mw unit in china,the cause of speed stalling was analyzed based on the actual measured data.the problem is mainly caused by primary air pipe resistance property variation,which caused the excessive opening of movable blades,the primary fan is working on the condition of higher wind pressure and lower flow.the approaches to reduce the speed stalling of primary fan and preventive measures are put forwa...

针对目前国内600 mw大容量机组锅炉轴流式一次风机运行中失速事故频繁发生的问题，在了解造成轴流式一次风机失速原理的基础上，根据实测数据对一次风机失速原因进行分析。主要原因为一次风管阻力特性的变化，使一次风机动叶开度过大，一次风机工作点处在高风压区低流量的工况点，是造成一次风机失速的主要原因，提出了运行中减少一次风机失速机率的处理方法及预防措施。

The typical local resistance with hyperconcentration sediment are also studied and a method to determine local resistance in sediment pipe is obtained with considering flow intensity and sediment factor.

同时还对典型管道泥浆局部阻力也进行了分析研究，提出了在考虑水流强度、泥沙因子的条件下泥浆局部阻力系数的确定方法。

The improvement of PEIs in heat and solvent resistance, impact resistance, flame retardance and flow processing characteristic was reviewed.

从耐热性和耐溶剂性、抗冲击性、阻燃性、加工流动性等方面概述了聚醚酰亚胺的性能改进进展。

The cell cycle and apoptosis and the expression of P-pg, bcl-2, P53 in the MG63 and MG63/R cell lines were analyzed by flow cytometry. Results The resistance index of the MG63/R cells to cisplatin was 83.557±4.841. The cells also had resistance to doxorubicin, vincristin, methotrexate and cyclophosphamide. Disordered structure of the MG63/R cells was observed through microscopy. The cells appeared in triangle, polygon and polynucleation. The increase of granular endoplasmic reticulums and apophyses was observed through transmission electron microscopy. The proliferation ability of MG63/R increased significantly, with a low apoptosis index.

结果 经顺铂186d的诱导，建立了MG63/R，其对顺铂的耐药指数为83.557±4.841，对阿霉素、长春新碱、氨甲基蝶吟、环磷酰氨亦产生不同程度的交叉耐药；光镜观察可见MG63/R细胞排列不规则，形态呈三角形、多角形及多核现象；透射电镜显示MG63/R细胞表面突起增加，粗面内质网丰富；细胞周期分析显示细胞增殖能力明显增加而细胞凋亡明显降低；MG63/R细胞 P-pg、bcl-2阳性表达较MG63细胞明显增加，P53表达则明显降低。

We equaled the meshwork of micro channels to the resistance using the equivalent method of ion-solution and resistance. And coupling with the character of the two-dimensional separation solution and the laminar flow, we established a integrated equation of the electricity account and programmed with the software Matlab. And then we found the direction of the EOF and the range of the power control.

该方法采用离子溶液-电阻等效法，将芯片上的微通道网络等效为电阻网络，再利用基尔霍夫定律，结合MEKC-CZE二维分离时的溶液流向特点以及液流的层流特性，提出了一套完整的电流计算方程，并用Matlab软件进行编程，得到了各个阶段的电渗流的方向以及控制电压的范围。

A measure of the total opposition to current flow in an alternating current circuit,made up of two components,ohmic resistance and reactance,and usually represented in complex notation as Z=R+iX,where R is the ohmic resistance and X is the reactance.

全电阻在交流电路中电流所遇到的所有阻抗的度量单位，由欧姆电阻抗和电抗两部分组成，在复合的标记中通常表示为：Z＝R＋iX，其中R是电阻抗，X是电抗

A measure of the total opposition to current flow in an alternating current circuit, made up of two components, ohmic resistance and reactance, and usually represented in complex notation as Z = R + iX, where R is the ohmic resistance and X is the reactance.

全电阻：在交流电路中电流所遇到的所有阻抗的度量单位，由欧姆电阻抗和电抗两部分组成，在复合符号中通常表示为 Z = R + iX，其中 R 是电阻抗， X 是电抗

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐