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Materials and methods The sampling points were set every 200 meters from the upstream of the river to the downstream and the characters of S, U, F, D and O were used to represent the delta park area of Suzhou, the Tuo River upstream segment, aquaculture area, downstream segment and suburban river segment, respectively.
Journal of Environmental Science, 2002，22(5): 562-565. ( in Chinese) [2] Yan Mingcai, Chi Qinghua.
[M].Beijign: Science Press, 1997: 193-194. ( in Chinese) [3] Zoller W H, Gladney E S, Duce R A.
Science,1974, 183:199-201
China Soil Background Values[M].Beijing: China Environmental Science Press, 1990: 330-382. ( in Chinese) [6] Muller G.

Materials and methods Testing reactor.
Acknowledgements 1)Supported by Shenzhen Science & Technology Founds（07K162DO） 2)Supported by Shenzhen Science & Technology Founds（2109K3080001） 3)Supported by Shenzhen Science & Technology Founds（JC200903180720A） 4)Supported by the National Nurture Science Founds（NO:50978170） References [1] Bjom Rusten, Chandler H.Johnson, SteveDevall, Dennis Davoren and Bryan S.Cashion.
Treatment of municipal wastewater in a hybrid process using a new suspended carrier with large surface area [J].Water Science Technol, 2004,49 (11-12): 207-214
Main reactions in anaerobic ammonium Oxidation reactor under organic carbon condition[J].Environmental Science,2006,27(7):1353-1357
Shortened nitrification process for biological nitrogen removal[J].Journal of Hefei University of Technology 2004, 27(10): 1292-1296.

So simulating the failure of materials with the method of deleting the failed elements is not rational.
Study on Impaction of Initial Geo-stress on Vibration of Surrounding Rock During excavation with drilling and blasting method, Chinese Journal of Rock Mechanics and Engineering, 27(5), 2008(in Chinese)
[3] Jun Sun, Underground Structure, volume 1,Science press,1988(in Chinese)
Dynamic Response of Surrounding Rock in Highly-stressed Tunnel Under Dynamic Disturbance, Science & Technology Review,30(22),2012(in Chinese)
[5] Jinze Bai, Theoretical Fundamentals and Example Analysis of LS-DYNA3D, Beijing Science Press, 2005 (in Chinese),p.165

Materials and methods Soil was collected from Jilin agricultural university, long-term experimental base.
Verstraten : Science of the Total Environment(2012)
Heilongjiang agricultural science: Vol. 05(2010), p. 49-52, In Chinese
Chinese Journal of Soil Science.
Burrows., in: Communications in Soil Science and Plant Analysis.

Journal of Hazardous Materials, 2009, 15(1): 186-192
[2] Ministry of Environmental Protection, The People’s Republic of China, Air and Exhausted Gas Monitoring and Analysis Methods[M], 4th edition, 2003, China Environmental Science Press
[8] WengHuanxin, New Technology of Sludge Harmless, Reduction and Resource Utilization[M], Beijing Science Press, 2009
[9] Ministry of Environmental Protection, The People’s Republic of China,Water and Wastewater Monitoring and Analysis Methods [M], 4th Edition, 2002,China Environmental Science Press
Water Science Technology, 2001, 44(10): 129-135.

The obtained materials are often used for handling the case the clues rather than evidence.
We should make it a key to pay attention to raw materials, equipment, process, and finished goods of the food[4].
The full name of the MD5 is Message-Digest Algorithm 5; it is invented by MIT's Laboratory for Computer Science and RSA Data Security Inc. in the 9O's early 20th century and evolved through MD2, MD3 and MD4.
[4] Specifically, malicious programs based on reverse technology analysis method [J] Journal of Computer Applications, 2011, (11)
Huazhong University of Science and Technology, 2010.

Close relationship of phosphate materials with iron minerals.
The distribution characteristics of phosphate materials show that about 50% of the phosphate materials are from the debris and cement.
Results and Discussion For the sake of developing Ningxiang-type oolitic hematite economically and reasonably, Institute of Multipurpose Utilization of Mineral Resources, Chinese Academy of Geological Sciences has been doing some research on the utilization technology of Ningxiang-type oolitic hematite from 2006 in the support of land and resources survey project.
Xie: Journal of Nanjing Forestry University (Natural Sciences).Vol. 2 (1994), p. 25-29

Kivilahti, Interfacial reaction between lead-free solders and common base materials, Materials Science and Engineering R 49(2005) 1-60
Suganuma, Advances in lead-free electronics soldering, Current Opinion in Solid State and Materials Science 5(2001) 55-64
Kivilahti, Wetting reaction versus solid state aging of eutectic SnPb on Cu, Journal of Applied Physics 89(2001) 4843–4849.

Lyon2,d 1 Faculty of Applied Sciences, Universiti Teknologi MARA, 40450 Shah Alam, Malaysia. 2 School of Materials (Corrosion & Protection Centre), University of Manchester, UK.
Experimental Methods Materials.
Castle, Journal of Materials Science, Vol. 83 (1983), p. 2987 [3] H.

Introduction Plasma treatment has been used for surface modification of polymers, such as carbon materials or plastics, films or tubes, to achieve the desired properties.
Experimental Materials.
Hash:Plasma Sources Science and Technology 205, 12(2003)
Vol. 200(2006), p. 3166 [3] S K Ryu, B J Park, S J Park: Journal Colloid and Interface Science.
Vol. 215(1999), p. 169 [4] M Veres, M Füle, S Tóth, M Koós, I Pócsik: Diamond and Related Materials.