水力学

Up to the present,the company has the ability to manufacture 15 series and I about92 specifications of products ,such as electronic balances of FA /JA, MP/JA series, largescale electronic balances of YP series, precision torsion balances of JN series ,TN-100C tray torsion balance moisture quick determination meters (model:SC-10,SC-69-02C,SH10A and JSC-20),hydrostaticai electronic balances of DSJ series ,liquild specific gravity balance etc.

目前，公司生产的产品有：FA/JA系列电子天平，MP/JA系列电子天平，JY/YP系列电子天平，YP系列大称量电子天平，JN系列精密扭力天平，TN-100C托盘扭力天平，水分快速测定仪系列（SC-10，SC69-02C，SH10A，JSC-20）DSJ系列电子静水力学天平，PZ-D-5液体比重天平，TG系列机械分析天平，TG系列机械标准天平等15个系列近92种规格品种的产品。

Bring forward optimum scheme of horizontal eddy flow discharge grotto in the right-bank of Gongboxia hydropower station, at the same time analyze the hydraulics characteristics of horizontal eddy flow discharge grotto in the Gongboxia hydropower station, for example flood discharge capacity、baffle ratio、exchange gas capacity、distribution of gas chroma、distribution of velocity of flow、average stress per time and distribution characteristics of fluctuation pressure and so forth.

提出了公伯峡水电站右岸水平旋流泄洪洞的优化方案，同时通过试验详细分析了公伯峡水电站水平旋流泄洪洞的水力学特性，如泄洪能力、消能率、通气量大小、掺气浓度分布、流速分布、时均压力和脉动压力分布特性等。

The hydraulic diameter of polymer molecular and the inaccessible pore volume in rocks of different permeability are measured by using the electrical resistivity method.

应用电阻法计数器测定不同相对分子质量聚合物溶液水力学分子直径，并结合原始含水饱和度通过压汞实验确定不同渗透率岩石中的不可及孔隙体积；研究聚合物分子直径与岩石渗透率的配伍关系，进行不同类型油藏聚合物的优选，探讨一种合理选择聚合物分子尺寸和相对分子质量的方法，利于指导油田聚合物驱方案的优化设计。

By three-dimensional linear standing wave,the wave propagation over a bar of scheldt flume experiment carried at Delft hydraulics and tidal current field simulation of waters of between Denmark and Sweden etc example,the model is verified to have advantages such as stability, high efficiency etc,and proved suitable for the simulation both water body of large range and long period.

最后通过三维线性驻波、Delft水力学中Scheldt水槽实验的周期性入射波通过淹没潜堤的传播问题以及连接丹麦和瑞典间海域的潮流场模拟等算例，从多方面验证了模型具有稳定、实用、高效、灵活等的优点，不但能对短波问题进行精确成功的模拟，而且也适合对大范围的水体进行长时段的模拟。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。