流速计

In addition the system is connected with length mearurer, fathometer, current meter, and the data are preliminarily converted and transmitted to processig software, after operating and processing, they will be displayed in the screen of PC or external display, and stored contineously.

系统由数据采集仪采集各传感器传输敷设速度、牵引张力、电缆张力等的感应电流或电压信号，并接入计米器，水深仪，流速仪，经初步转换后传输给处理软件，运算及处理，并反映至微机显示器上或外接显示屏上，并进行连续存储。

In this paper, formulas for calculating the thickness of the turbulent boundary layer and the inlet length in the entrance region of the rough pipe are given with the help of momentum integral equation in which the velocity distribution is the logarithmic law.

本文在流速分布对数律假设下，通过求解动量积分方程获得了粗糙圆管进口段紊流边界层和进口段长度的计算式。

DIN 53014 1 1994 Viscosimetry capillary viscometers with circular and rectangular cross section for determination of flow curves principles , concepts , definitions

测定流速曲线用环形和矩形横截面的毛细管粘度计。

The results show that the penetration ratio decreases with increase of filtration velocity, the range of the most penetrating particle size is in the range of 0.15～0.20 μm, the effect of aerosol concentration on the filtration efficiency is ignore for monodisperse, the filtration efficiency of each step on multilayer is different from others for polydisperse.

研究结果表明：用玻璃纤维膜过滤清除气溶胶团粒时，对粒径在 0 15～ 0 。2 0 μm之间的团粒较难清除；透过率随流速的增加而增加；单分散气溶胶团粒浓度变化对过滤效率的影响可忽略不计；多级过滤时，各单级过滤效率差异受多分散气溶胶的影响较大。

The results show that: 1 trashracks do not interfere with one another when the trashrack spacing-to-width ratio is not small than 4, 2 turbulent intensity of the wake flow for the trashrack with streamlined profiles is much small.

用该算法对大长宽比的钝体尾流三维超声波流速仪测量数据的分析表明：1钝体间距与宽度之比大於4时，钝体间的相互影响可以忽略不计；2流线型的钝体尾流紊动强度较小。

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