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The cities are surrounded by toxic, hazardous, flammable, and explosive materials that cause accidents like fire, explosion, and leakage and endanger the safety of the cities seriously.
The number of tall, multifunctional, and large buildings is increasing, and the building and decorative materials increasingly diverse.
(In Chinese) [2]J.M.Gao,M.R.Zeng, Journal of Safety Science and Technology.11(2005)39-42.
(In Chinese) [4]Z.T.Xu,K.Wen, Journal of Safety and Environment.6(2011)82-84.

Introduction Methanol is a widely used basic chemical raw materials.
C Wang et al [4] consider China is vigorously developing coal-to-methanol industry, methanol in China has become an important automotive fuels and chemical raw materials and think can replace imported oil to some extent.
Acknowledgements The authors gratefully acknowledge the funding of “International Science & Technology Cooperation Program of China”(Project No. 2010DFA24580) References [1] Olah, George A. 
International Journal of Hydrogen Energy 33.1 (2008): 57-63
[7] Zhang H., Wang S., Li Z., Ni W., Journal of Tsinghua University(Scinence and Technology),2005,45(11)

Acknowledgment This work was funded by International Cooperation Project of the Ministry of Science and Technology, China (No. 2016YFE0105100).
Journal of Mechanical Engineering, 2010, 46(17): 105-113
Polishing of viscoelastic materials polishing tools [D].
Physics of Magnetism and Magnetic Materials [M].
International Journal of Machine Tools & Manufacture, 2011, 51(2): 142-151.

The materials were Tianma E-glass and TDE-86# epoxy resin.
[2] P.Mertiny and F.Ellyin: Composite Science and Technology Vol. 64 (2004), pp.1-9
[3] P.Mertiny, F.Ellyin and A.hothan: Journal of composite materials Vol.38(2004), pp1095-1113
[4] D.Kujawski, F.Ellyin and M.Culen: Journal of Reinforced Plastics and Composites Vol.17(1998), pp.268-281

Introduction Chemical vapor deposition (CVD) diamond is an excellent tool material with a series of mechanics, thermal characteristics close to natural diamond.
Test verification Fig.6 SEM picture of blade part of CVD diamond coated tools To verify the result of simulation, experiments have been done on both plane and hollow substrate holder with the same deposit parameters, using YG6 as the material of tools.
Min and et al.: Journal of Synthetic, Vol. 33 (3) (2004), pp.436-440.
Velázquez and et al: Diamond & Related Materials, Vol. 15 (2006), pp.109
Wang: Journal of Applied Sciences, Vol. 21 (4) (2003), pp.423.

Qu: Durability of Concrete Structures (Shanghai Press of Science and Technology, Shanghai, 2003)
Arliguie: Materials and Structures, Vol. 33 (2000), p539-544
Azher: ACI Materials Journal, No. 1 (2007), p40-47
Yu: Journal of Building Structures, No. 4 (1997), p51-57

In Britain more than 30% of the gas station and almost all of the chemical plant, refinery, chemical material depots were serious polluted.
will more effectively.Through the continuous extraction of groundwater pollution, pollution plume range and pollution level decrease gradually, and pollutants in aquifer medium transformed to water and then to be cleared[32].Sometimes we can pass into the surface active agent to enhance pump-treat effect.There are a lot of methods to treat the pollution of groundwater, such as adsorption, filtration, membrane separation and gravity separation, ion exchange, biological contact oxidation and biological filter, REDOX, coagulation precipitation, etc. 2.Permeable reaction barrier technology Permeable reactive barrier (PRB) also called permeable reaction wall technology, is the groundwater in-situ treatment method which treating groundwater in the 1990s in Europe, the United States and other countries[9].It is a kind of technology, which can replace the traditional pump-treat system and land biological treatment.A permeable reactive barrier (PRB) is an engineered, subsurface zone of reactive material
It includes the downstream of the sources excavates groove, and then pack reaction medium, and the pollution of groundwater reacts with reaction medium, last make the pollutant dealt with.Reaction filling medium can include zero-valent iron, activated carbon, peat, montmorillonite, lime, sawdust or other materials[34-35].
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(in Chinese) [22] Bo Zhang,Hong Mei and Yongsheng Zhao:Global Geology.Vol.20 (2001), p.175(in Chinese) [23] R.V.Erik,Richard L.S and M.C.Andre:Environ.Sci.Technol.(2013)p.1 [24] Chunsheng Fang:Journal of Jilin University(Earth Science Edition).Vol.41 (2011), p.293(in Chinese) [25] Huili Gong,Wenji Zhao and Xiaojuan Li:Groundwater in the geographic information system-design, development and application.Science Press,Beijing(2006) (in Chinese) [26] B.Dixon:Applied Geography.Vol.25 (2005), p.327 [27] G.Alexandra,P.Christos:Environmental Geology.Vol.49 (2006), p.653 [28] V.Uddameri,V.Honnungar:Environmental Geology.Vol.51 (2007), p.931 [29] M.M.Thomson.Remediation Technology Overview,Second Workshop on the Remediation and Management Policies for Contaminated Sites (2011) [30] S.S.Suthersan,F.C.Payne.In Situ Remediation Engineering.CRC Press,Boca Raton (2005) [31] W.C.Anderson: Remediation Technologies Screening Matrix and Reference Guide, Md: American Academy of Environmental Engineers

The Binary Vapor-liquid Phase Equilibrium of Citronella Oil under High Vacuum Qiu Chen1, a, Lili Gu*2, b, Zhenghui Zhang1, c 1Yunnan Radio & Television University,China 2Kunming University of Science and Technology, School of Chemical Engineering, China achenqiuqq@sina.com, bliligu001@163.com, c375533955@qq.com Keywords: citronella oil, phase equilibrium, separation Abstract.
Citronella oil is a thermo-sensitive material, so the separation under high vacuum conditions could lower its boiling point and maintain its quality.
Journal of Yunnan university of technology.1996,1:47-51 [3] Xia Guangrong, Chen Chenghua.
Journal of Yunnan university of technology. 1989 :22-28 [4] Xu Guanqian.

There are 1, 4 and 8 roots of filaments combined together so that contact areas of the conductive material are changed.
Experiment Choice of Materials Terylene yarn is chosen as the insulating material.
The stainless steel wires are selected as the conductive material.
With combined roots’ adding tenacity of conductive material is highly enhanced.
CN Patent No. 20061050453. (2006) [2] Sandbach DL, Chapman C, US Patent No. 6231666. (2005) [3] LU JJ, CA Patent No. 2372706. (2002) [4] Post ER, Orth M, Russo PR, et al: Journal of IBM System.

Top management support is most crucial at the implementation stage of the project cycle as sufficient resources in the form of money, manpower and materials are needed to achieve the intend purpose of the project.
International Journal of Productivity and Performance Management 51(4) (2002): 202-208
,Robben H., The impact of new product launch strategies on competitive reaction in industrial markets, Journal of product innovation management, 19 (2002) : 159-170
[18] Zirger B., Maidique M., A model of new product development : an empirical test, management science, 36 (1990): 867-883
[21] Cohen S.G., Bailey D.E., What makes team work: group effectiveness research from the shop floor to the executive suite, Journal of management, 23(3), (1997):239-290