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Through researching the mechanism of biological nitrification and denitrification and actual project application of the technology and related literature materials, the obtained results are as follows:(1) Anoxybiosis is effective to the removal of COD; after the anoxic process, BOD/COD of the outflow increases, it shows that the degradation ability of wastewater is improved; anoxybiosis is insensitive when shock loading of inflow wastewater varies greatly;(2) It is demonstrated by the operation of inoculation and cultivating that biofilm takes two weeks to succeed in cultivating on packings and the removal ratios of NH3-N and COD get 50% and 70% respectively, when gas-water ratio is 6:1, HRT is 7.3 hour, water temperature is above 15°C;(3) It is demonstrated that gas-water ratio, hydraulic loading, HRT, temperature, pH etc are important factors which influence the removal effect of pollutants, when the gas-water ratio is 6:1, hydraulic loading is about 0.38kgNH3-N/m~3.d, water temperature ranges from 15°C to 27°C, pH ranges from 7.5 to 8.0, the BIOFOR removal effect of pollutants is the best;(4) The operation indicated that, this technology has strong ability of nitrification and denitrification; it has extremely vital significance for reducing the water body eutrophication;(5) It is confirmed the feasibility and the usability of preanoxic-BIOFOR process to treat L-lactic acid production wastewater. The experiment indicated that the treatment effect of this technology is very good and also shows that the technology has many advantages, such as small volume, high treatment efficiency, good effluent quality and strong endurance to load variation, this technology is a new and economical wastewater treatment process.

通过对生物脱氮机理的研究和该组合技术的实际工程应用，并结合有关文献资料，取得如下结论：(1)预缺氧池对L-乳酸生产废水中的COD去除具有一定的效果；废水中难降解的高分子物质经过缺氧工段分解为易于氧化降解的物质，浮状有机物在水解菌的作用下，将不溶性有机物水解为溶解性物质；预缺氧池具有较强的抗冲击负荷能力；(2)BIOFOR接种挂膜过程表明：HRT为7.3h、气水比为6：1、水温保持在15℃以上，经过半个月生物膜即以形成，NH_3-N和COD的去除率分别达到50％和70％左右；(3)研究表明：气水比、水力负荷、HRT、温度、pH等是影响污染物去除效率的重要因素，在气水比为6：1，NH_3-N容积负荷为0.38kgNH_3-N／m~3·d，温度在15℃-27℃，pH在7.5-8.0之间的条件下，BIOFOR对污染物的去除效率达到最佳；(4)运行表明，该组合技术具有较强的脱氮能力，对于减少水体富营养化具有十分重要的意义；(5)经过半年多实际工程的现场调试与运行，验证了利用预缺氧—BIOFOR组合工艺处理L—乳酸生产废水的可行性和实用性，得出该组合技术具有占地面积小，处理效果好，运行费用省，耐冲击负荷能力强等优点，是一项新型、经济的污水处理技术。

It is disconcerting that an antideflation message has not yet been transmitted clearly by central banks as the weakness in the global economy has worsened sharply over the past several months and demand has collapsed relative even to rapidly falling output.

但令人不安的是，面对全球经济低迷的急剧恶化、以及比产出萎缩更为迅速的需求崩溃，各大央行仍未发出明确的反通缩信号。

It is disconcerting that an antideflation message has not yet been transmitted clearly by central banks as the weakness in the global economy has worsened sharply over the past several months and demand has collapsed relative even to rapidly falling output.

然而，三次危机的经验已令人信服地说明：宁可承受通胀率上升的风险，也要尽力避免出现自我强化的通缩的风险。

UDZ Series liquid level indicator of flap disassembly fast and convenient, the installation position can be arbitrary choice, free to change the direction of observation, thus instrumented great visibility; UDZ series of cost-effective liquid level was significantly higher than that used multiple sets of glass plate liquid level of cost performance; UDZ series of liquid level indicator, the sender's device, as well as the liquid level with the main transmission medium within the complete separation of the measured structural design, so that level gauge in the job has pressure (up to 320KG), toxic and inflammable conditions, with absolute safety and reliability; UDZ-3 type uses innovative design, improve the sensitivity of the sensor, and its near-zero drift FarEasTone signals and long-term stability so that it has always been at the scene consistent level instructions; sensors and the main body has a certain interval, which can be solved effectively under high-temperature liquids (up to 480 ) remote detection and control; antifrost type UDZ Series Level Gauge, are I plant the patented product (Patent No.: ZL00221022 3), guarantees that the use of cryogenic liquid level gauge is not freezing (such as liquid CO2), the effective guarantee of the level of a normal job.

UDZ系列液位计的翻板指示器拆装快捷方便，安装方位可任意选择，观察方向可随意改动，因而仪表指示的可视度很大；UDZ系列液位计的性能价格比明显高于采用多组玻璃板式液位计的性能价格比；UDZ系列液位计的指示器，发讯器、以及液位变送均与主体内被测介质完全隔离的结构设计，使液位计工作在有压（可达320KG）、有毒和易燃的工况下，具有绝对的安全性和可靠性；UDZ-3型采用了新颖设计，提高了传感器的灵敏度，其远传信号近乎零温漂和长期稳定性使其始终于现场液位指示保持一致；传感器和主体有一定的间隔，因而能有效地解决高温液体（可达480℃）远距离检测和控制；防霜型UDZ系列液位计，是我厂的专利产品（专利号：ZL00221022·3），保证了在低温液体上使用液位计不结冰（如液体CO2），有效的保证了液位计的正常工作。

Allium(Allium sativum L.)is a kind of buld which belongs to liliaceae.It has some pharmacological actions,such as antibiosis antivirus antioxygenation and antitumor,which has many different mechanism.And suggested that allicin has wide foreground in antitumor.

大蒜是百合科属植物的鳞茎，具有多种药理作用，如抗菌、抗病毒、抗氧化、免疫以及抗肿瘤作用，其中抗肿瘤作用的机制不尽相同，其在抗肿瘤方面有着广阔的前景。

Since its founding, especially overthe past three decades of reform and opening-up, China has scoredremarkable achievements in both economic development and opening-up.Today, China stands as the fourth largest economy and third largesttrading nation of the world, and has been the biggest recipient offoreign direct investment amongst developing nations for 16 years in arow. China has been a main contributor to world economic growth andstability.

建国以来特别是改革开放30年来，中国的经济建设和对外开放取得了举世瞩目的成就，经济总量跃居全球第四，外贸进出口居全球第三，吸收外资连续16年居发展中国家之首，为世界经济的稳定增长做出了重要贡献。

Based on analyzing and comparing the characteristics of the present cutters, the material characteristics of Arundo Donaxl has tested and analyzed in this paper, and investigated a rotating chain-type saw-tooth cutter for stalks of tall-thick and harder crops , and developed a cutting test system including the rotating chain-type cutting tester system and transportation mechanism and the high-speed photography image collecting and processing system. Arundo Donaxl cutting test has been carried out and the cutting process of the Arundo Donaxl has been photographed on-line by the high-speed photography image collecting system.

本课题在比较分析现有切割器性能特征的基础上，试验分析了芦竹的物料特性；研究了用于高、粗、硬茎秆作物切割的回转链式锯齿形切割器；设计了包括回转链式芦竹切割器、芦竹夹持输送装置和高速摄像图像采集与处理系统的芦竹收割机切割试验系统；对芦竹进行了切割试验，并通过高速摄像图像采集系统在线记录了切割过程；运用自行设计开发的高速摄像分析及其序列图像处理软件，试验分析了影响芦竹切割质量和切割效率的因素。

The research results indicated that the viscosity of the autogenetic foam system has good thermal stability, the system has favorable ability to reduce the viscosity and interfacial tension of the heavy oil, the displacement of the system for the heavy oil is good and it has good mobility control ability for the mobility in layers and interlayers,.

研究结果表明，自生泡沫体系粘度具有较好的热稳定性，并具有良好的稠油降粘和降界面张力能力，驱替稠油能力强，具有很强的层内层间流度控制能力。

This scaffold can make cell to plant、fix and grow,then provide caligraphy for the tissue synthetic.The cell-scaffold complex has,t immunization,but has similar structure and function as autogenetic tissue,so it has widespread prospect .

目前实验已经对不同组织，包括骨、软骨、肌腱、皮肤，血管和角膜等进行了成功的构建，并已经被临床用于修复多种组织缺损，取得了令人满意的效果。

There are medical ensure systems in the boat: CT room,DR room,special examine room,special check room,mouth (nonnasality ;oral cavity) examine room,facial features (the five sense organs:eye ear nose and troat) examine room,medicine house,blood storeroom ,make oxygen station,the centre burthen allure system and compress air system and so on.It sets up distribution multi-operation rooms and nurse stations.It has houdreds of sickbeds,such as: intensive care unit sickbeds, grievous bodily harm sickbeds,burn sickbeds,common sickbeds,insulate sickbeds and so on.There is long-distance medical system in the boat,aviate board has near one thousand square meters ,can help many model copters rise and drop.It has many part special specs lifts for injured transport.

船上有CT室、DR室、特诊室、特检室、口腔诊疗室、眼耳鼻喉诊室、药房、血库、制氧站、中心负荷吸引系统和压缩空气系统等医疗保障系统；配设多个手术室和护士站；设有重症监护病床、重伤病床、烧伤病床、普通病床、隔离病床等各类病床数百张；船上还设有远程医疗会诊系统；飞行甲板面积近千平方米，可供多种型号的直升机起降；配有多部特殊规格的电梯，供伤员转运使用。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。