水力的

In order to achieve the needed length fiber, fractionation of softwood pulp fiber were carried out with a cylindrical hydrocyclone.

纤维长度对纸的质量影响很大，不同长度的纤维适合不同类型的纸张，为了获得所需要的纤维长度，提高经济价值，我们用圆柱形水力旋流器对纸浆纤维进行筛分。

To obtain the approximate solution, the pressure acting on the gate is divided into two parts, one is the fluctuating pressure of the flow underneath the stationary gate, which is investigated with experiment; the other is the hydrodynamic pressure due to the vibration, which is equivalent to the attached mass matrix, damping matrix and stiffness matrix of the equation.

为了获得方程的近似解，本文将作用在闸门上的水动力荷载分为两个部分，一是闸门无振动时的水流压力，用水力模型试验测定；二是由于闸门振动引起流场扰动的动水压力，通过运动方程中的附加质量阵，附加阻尼阵和附加刚度阵来等效。

When the internal pressure of liquid, which dropped below the liquid at that temperature the saturation vapor pressure at the local area or the formation of steam bubble point; and stress at elevated places around the bubble suddenly breaking pressure, flow due to inertia to high speed to the center of bubble extrusion, hydraulic shock caused by the equipment.

当液体内部压力下降，低于液体在该温度下的饱和蒸汽压时，在局部区域形成汽泡或汽穴；而在压力升高的地方汽泡突然被四周的压力压破，液流因惯性以极高的速度向汽泡的中心挤压，对设备造成水力冲击。

Based on hf=λL/DV2/2g,formulain the form of hf= K1·F has beenderived for the hydraulic gradient lines of laterals of subirrigation systems. The formula is also applicable to that of a drip irrigation system. Anotherformula,based on Chezy's V=C RS,in the from of Hf=K2IQ2·F2 has been worked out for the laterals of sprinkler systems.

本文运用管道水动力学原理，对喷灌、滴灌、渗灌系统灌水支管的水力坡降线导出表达的理论公式，讨论其调控的可能途径，为试验研究这类系统的规划设计问题从原理上提供一个分析方法。

On the basis of the grey related result, six factors including soil saturated water-holding ability, soil non-capillary porosity, lower shrubs and grass coverage, litters height, soil water infiltration rate, forest canopy density have been selected as the indexes to assess the water-conserving and flood-controlling function of protection forests.

根据灰色关联度的分析结果，挑选出了包括土壤饱和持水力、土壤非毛管孔隙度、灌草层盖度、枯落物厚度、土壤入渗速率、林分郁闭度在内的影响库区防护林植被理水调洪功能的6个主导因子，并将这些因子作为筛选库区高效理水调洪型防护林植被群落的指标。

As the modernization of our country is developed rapidly, the demand for the energy is more urgent and more important, in the development of the medium and small-scale waterpower resourses , have put forward higher and higher demand to the performance of the governor too.

随着我国现代化建设迅速发展，对能源的需求更为迫切和重要，在中小型水力资源的开发中，对调速器的性能也提出了越来越高的要求。

A scheme to be formulated and submitted for approval to the harbour commissioners for the exploitation of white coal, obtained by hydroelectric plant at peak of tide at Dublin bar or at head of water at Poulaphouca or Powerscourt or catchment basins of main streams for the economic production of

537有个建造水力发电厂的计划：利用都柏林沙洲的满潮、噗啦呋咔或鲍尔斯考特瀑布的水位差、主要河流的流域来开发白煤，经济生产五十万水马力的电力。

This paper utilizes varied methods to determine the modern times direction of maximum principal stress in Baka oilfield, and makes use of hydraulic fracturing data to estimate size and distribution law for three direction principal stress, in order to try hard to reflect objectively and authentically in-situ stress conditions at present for Baka oilfield.

文章运用多种方法确定了巴喀油田现代最大主应力的方向，利用水力压裂资料估算了3个方向主应力的大小及分布规律，力图客观真实地反映出巴喀油田现今地应力的状况，并简单阐述了裂缝与古今地应力的关系及在不同开发时期的作用。

Resonance light scattering spectrum of cadmium- phenanthorline- bromophenol blue system has been studied. The effects of interference substances and optimization of procedure have been investigated. In the presence of Tris-HCl(pH=9.60),Cd2+ reacts with Phen to form the chelate cation, which further reacts with acid dye of BPB to form an ion-associated complex. Then, the complex molecules are accumulated to particles by virtue of hydrophobic forces and other molecular forces. This results in significant enhancement of RLS intensity, and the enhanced intensity of RLS at 638nm is proportional to the concentration of Cd~(2+).

研究了镉-邻菲罗啉-溴酚蓝体系在碱性条件下的共振光散射光谱特征，考察了体系的影响因素和最佳反应条件，研究表明，在pH=9.60的Tris-HCl介质中，镉与邻菲罗啉形成络阳离子，再与酸性染料溴酚蓝形成离子缔合配合物，在疏水力等分子间作用力下，缔合物分子聚集形成缔合微粒，溶液的共振散射光显著增强；在638nm处RLS增强程度与镉浓度成线性关系，线性范围为0-3.20mg/L，检出限为4.50ug/L。

The plug energy dissipater is applied to eliminate the bubbles taken place to the outflow of power plant cooling water. The hydraulic characteristics of the dissipater are studied both by model test and numerical simulation based on k-ε two-equation turbulence model.

从电厂排水口消能消泡消盐雾的机理出发，以模型试验和数值模拟等研究手段探讨了洞塞式消能工的流场和压力场等基本水力特性，获取了面积比0.4~0.8，相对长度比0.5~2.0的多种洞塞的局部阻力损失系数，并为工程应用提供了计算的经验公式。

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。