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The method comprises the following steps: according to the raw water quality, the change of the number of bacteria inside the sedimentation tank and the water quality of the backflush yielding water, the backflush yielding water in the sedimentation tank is collected and deposited in a backflush phase of a working period; supernatant fluid containing mass active bacteria and soluble nutrient elements reflow to the sedimentation tank; total or partial sediment containing soluble nutrient elements in an underlayer reflow to the sedimentation tank and is reutilized by mass microorganisms in the sedimentation tank, thereby replenishing the nutrient substrate needed for microorganism growth, proliferation and metabolism under the condition of the low nutrition substrate, and maintaining the ecological stability in the sedimentation tank.

该方法根据原水水质和生物滤池内部细菌数量的变化以及反冲洗出水的水质，将生物滤池工作周期中反冲洗阶段的反冲洗出水收集并沉淀，将其含有大量活性细菌和溶解性营养元素的上清液回流至生物滤池，下层含有不溶性营养物质的沉淀全部或部分回流至生物滤池，被生物滤池当中的大量存在的微生物重新利用，从而补充在低营养基质条件下，微生物生长、增殖和新陈代谢所必需的营养基质，维持生物滤池当中的生态稳定。

It is in this background that the processing evaluation was put forward. Processing evaluation is not only the result of research development in the area and but also needed in teaching reform practice.

过程性评价正是在这样的背景下提出的，过程性评价的产生既是理论发展的结果，也是教学评价改革实践的需要。

This design can be used in low-power monochromatic mode for reading, but can also switch to backlit colour mode when needed.

该设计可用于低功耗的单色阅读模式，但需要时，也可切换至背光彩色模式。

To develop a backplane model, individual models for connectors, packages, PCB traces and vias are needed.

开发一种背板模型需要独立的连接器模型，封装，线路板上的线路以及导通孔。

Less backspin is needed on incoming balls that are high so you can hit them with more speed and power.

来球高时需要更少的回旋，这样你可以使回球更快速有力。

During that time you might have needed to backup and restore your system.

在那时候，你也许需要备份和恢复系统。对于Windows而言，你需要某种私有软件。

Software Description: ERUNT allows you to keep a complete backup of your registry and restore it when needed.

ERUNT 允许你保存对你的注册表的完整的备份并且在需要的时候进行恢复。

Plus, a control line for reversing is not needed to switch to reversing video (the control line from backup light); when P_BOX captures backup information of CANBUS, it can automatically switch to reversing video.

倒车视频功能，P_BOX也可以轻松实现，而且倒车切换视频不需要布置倒车控制线，P_BOX检测到CANBUS的倒车信号，自动实现切换视频。

Uricult dip slide was given to the patients who needed bacteriuria detection and took it to laboratory for test after operating by themselves according to the standards concerned.

为需菌尿检测病员提供能自行操作的尿培养浸片 U RICU l t 经典型，按要求操作后送检。

There was something rather old-fashioned about our entire stay: the excessively polite guide who collected us in the morning; the beautiful girls in traditional costumes who served us numerous dishes at mealtimes; the cool linen clothes and brightly coloured umbrellas we needed to combat the furnace-like heat; the fountains which played in the courtyards in the Bamboo Garden in the evening. I felt like a character in a Forster novel, wearing a long skirt and brandishing a Baedeker.

在我们逗留期间，也感受到了其他更为浓郁旧式风格的东西，那位每天早上集合我们的特别热情的向导，用餐时端上无数美味的穿着旗袍的女孩们，那些帮助我们抵挡酷热的，凉爽的亚麻布衣服和亮丽的阳伞，还有傍晚在竹园里喷涌的泉水，我感觉自己仿佛置身于福斯特的小说中，身着长裙，手中挥舞着一本旅行指南，呵呵。

Bob Eckert has been chairman and chief executive of Mattel for eight years.

美泰董事长兼首席执行官鲍勃·埃克尔特在任已8年。

The outlook for honors and disgraces carries on and surpasses the traditional outlook for honors and disgraces theoretically, and carries on and develops the theory of construction of socialist mora...

社会主义荣辱观的提出在理论上是对传统荣辱观的一次继承和超越，是对社会主义道德建设理论的继承和发展，在实践上有利于形成良好的社会风尚。