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Experimental study on hydraulic characteristics of underflow for energy dissipator with step-down floor

现对跌坎式底流消能工消力池内水流流态的演变进行了初步分析，随着入池能量的变化，消力池中会产生混合流、淹没混合流、淹没底流以及远驱底流流态。

At the step-time of twenty century, with the development of science and technology, lots of developed countries distended the range of patent protection, use patent law protect bio-technology and commerce methods. In this expansion, utility played a important role, they often through wide explanation on utility distend patent protection range.

世纪末叶，随着科学技术的不断发展，发达国家纷纷扩张专利权的保护客体，将生物技术、商业方法等领域纳入了专利权的保护范畴，在这一扩张的过程中，实用性扮演了极其重要的角色，他们往往通过对实用性做过于宽泛的解释，来达到扩大专利保护范围的目的。

Step 5. Attach a table leg to a table with a dowel screw, which is threaded on both ends.

用两头都有螺纹的双头螺丝将一个桌腿连接到桌子上。

Step 1: Center the secondary mirror on the axis of the focuser drawtube.

把副镜中央置于调焦伸缩管的中轴。

The first step in making the wooden handicraft is to drill a small hole on each side of the hearts.

第一步，使木制工艺品是钻一个小孔一边一国的心中。

Based on modeling and simulation of the steady characteristic of five-phase hybrid stepping motor driver system with fixed-chopping frequency, constant total current driving and new pentagon winding connection pattern, the paper studies the dynamic characteristic of the system, especially single step response characteristic.

本文在建立绕组接法采用新五边形接法，驱动方式采用恒频斩波恒总流驱动时的五相混合式步进电动机系统的稳态仿真模型的基础上，分析研究了其动态特性，并重点对单步响应特性进行了研究与分析。

Therefore, the driving axle took on the automobile important always called one, should improve its design as soon as possible the method, the step, enhances our country automobile product design the aggregate level.

因此，驱动桥作为汽车上重要的总称之一，应尽快改进其设计的方法、步骤，以提高我国汽车产品设计的总体水平。

With the European powers militarily exhausted by the war in Europe, the United States was the only power in the Pacific able to stop Japan from invading the Dutch East Indies, and by moving the Pacific fleet from San Diego to Pearl Harbor, Hawaii, Roosevelt made a pre-emptive strike on that fleet the mandatory first step in any Japanese plan to extend it's empire into the "southern resource area."

上筋皮力尽时，美国成为太平洋上唯一能制止日本侵略荷属东印度群众岛，借着从圣地牙哥派遣太平洋舰队到夏威夷的珍珠港，罗斯福对那舰队作出先发制人的攻击，那是日本要在南方资源区扩展其帝国的任何计画的第一步。

Then,the edge surfaces lost during the de-noising step are recovered based on the connectivity of edge surfaces.

实验结果表明，文中算法克服了边缘曲面抽取算法抽取的边缘曲面有洞的缺陷。

A file on a server can be downloaded, edited and uploaded within one step through the edit function.

上的文件服务器可以下载，编辑和上载的一个步骤通过编辑功能。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。