很好

In this thesis, I summarize the theoretical calculation method, applied scope and notice of siphonic drainage system, and point out the advantage of siphonic drainage system compared with gravitation drainage system. In the archetype experiment study of siphonic drainage tube, I adopt different tube diameter and different structural height to survey the drainage volume and press in different place. I observe various kinds of flow state, and get chief factors which influence hydraulic peculiarity of system as the tube diameter or structural height, and find out the relevance of factor to flux. I apply CFD Fluent software and adopt standard k-ε model and RNG k-ε model, then use finite volume method and second-order upwind scheme to discrete numerical model, while coupling numeration of velocity field and press is based on SIMPLE. In the numerical simulation of curved part of tube, siphonic drainage tube experiment system and multi-outlet siphonic drainage system, I make research on internal velocity and press of system in different project condition by changing the tube diameter of curved part, negative press value in tube export and improving the quantity of water gutter. This thesis first adopts a method of combining archetype experiment and numerical simulation to study the siphonic drainage system, test and verify the validity of experiment and numerical simulation, and makefurther study on system, it solves the problems of limited testing conditions, and has a logical results, it can provide a valid method for optimizing and designing the drainage tube-net system. The conclusion have referring value for study and design of siphonic drainage system.

本文首先对虹吸式排水系统理论计算方法、适用范围以及注意事项做出总结，并分析了虹吸式排水系统的优势；再对虹吸式排水管道进行原型试验研究，采用不同管径不同立管高度，对系统流量、管道压强进行量测，观察了各种工况下的流态，对其水力特性进行研究分析，找出影响水力特性的落差、管径主要因素以及与排水量的关系；进一步应用计算流体力学Fluent软件，采用标准κ-ε模型与RNGκ-ε模型，计算过程应用有限体积法和二阶迎风格式对数值模型进行离散，速度和压力的耦合采用SIMPLE算法，分别对系统弯管段、虹吸排水管道试验系统、多斗虹吸式排水系统进行数值模拟分析，通过改变管段弯头处半径、管段出口负压值、增加雨水斗数对不同工况下系统内部的速度和压力进行研究；本文首次采用结合原型试验与数值模拟相结合的方法，对虹吸式屋面雨水排水系统进行研究，试验与模拟相互验证，并进行拓展，很好地解决了虹吸式屋面雨水排水系统由于试验条件限制问题，结果正确合理，为排水管网系统设计和优化研究提供了有效的方法，对工程设计有较好的参考价值。

As for the super error correction, are similar, not necessarily like super error correction, and some manufacturers to increase the error-correcting power skinhead very good life would be affected.

至于超强纠错都是吹牛的，都差不多，不一定超强纠错就好，有些厂家把光头功率调高了纠错就很好，寿命就受影响了。

The next time you decide to skip class, check with me first. It wouldn't do for both of us to be absent.

那很好，下次你决定要逃课的话，先告诉我一下，我们两人都缺席不太好。

I mean modernization is good, we get better education, medication, skyscrapers and cars.

我说，现代化很好，我们可以有更好的教育，医疗，更高的摩天大楼和汽车。

If the virtual host config is in place, the Snakelet server is best started using the provided serv.py script.

如果已经配置好虚拟主机，Snakelets服务将通过提供的serv.py脚本很好的运行。

You'll be smart to snap things up - your aspects will be simply sensational.

你会作出明智的抢购——你的方向很好（sensational：是轰动，非常好的意思）。

I am getting very well with my English teachers, host, and we have become good friends. I have even given such small gifts of Chinese characteristics as Chinese Knots and snuff bottle.

我和英国老师、房东都能相处得很好，成了好朋友，送给他们有中国特色的小礼物，如：中国结、鼻烟壶等。

OK, so I have a lot of choices so far. This is good.

好，那么目前为止我有很多选择，这个很好。

The results showed that inhibitory effect of disodium dehydroacetate was much stronger than that of sodium benzoate,therefore it has high potential to be applied to the fruit preserves industry.

实验结果显示，脱氢醋酸钠在蜜饯糖渍过程中对菌落总数和酵母菌有很好的抑制作用，效果明显好于苯甲酸钠。

This is a very good solution, I put the jumper on the electric soldering iron down even better with tin to jump the line (Figure 2), thus saving a lot of space.

这很好解决，我就用电烙铁把跳线焊了下来，用锡连好要跳的线（图2），这样就节省了不少空间。

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。