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Teachers should fully play the role of teaching materials and knowledge of medium interest, various kinds of sports material progress and new concepts, new technology, new action will cause students doubts and arouse their curiosity, the desire of knowledge (15).
Therefore, sports teaching must be based on the teaching task, strict, the system of teaching material, using different teaching methods, enhance students' potential, the integration of knowledge, science and interest.
The level of difficulty of the teaching materials should be suitable for students to present your actual level, can consider more difficult phase.
Journal of Guidance, Control, 2001. 10(5): p. 483-491
Journal of survey, 1998. 21(5): p. 684-691

Na and Y.Lee: Journal of Materials Processing Technology Vol. 209, Issue 9 (2009), p.4465 [7] S.Y.
Qi: Journal of Materials Processing Technology Vol. 209, Issue 6 (2009), p.2760 [8] H.
Lee: Journal of Materials Processing Technology Vol. 209, Issue 9 (2009), p.4476 [9] K.
Lundberg: Journal of Materials Processing Technology Vol. 36 (1993), p.427 [10] J.
Khraisheh: Research report LGP 3-16 (King Abdulaziz City for Science & Technology, Saudi Arabia 2002)

In this work, the mass lump is , ZnO film is chosen as the piezoelectric material.
Acknowledgements This work has been financially supported by the National Natural Science Foundation of China ( No.11074274, No.11174319).
[2] Qiao Hui, Liu Jun, Zhang Binzhen，Zhang Wendong，Xiong Jijun，Xue Cheyang, Design of a novel Si-based bionic vector hydrophone based on piezoresistive effect, Chinese Journal of Sensors and Actuators. 21 (2008) 301-304
[4] Yang Chuwei, Master's thesis of Institute of Acoustics, Chinese Academy of Sciences (2003) 45-47
[6] Shan Huizu, Material Mechanics Tutorial, second ed.

I.1,e and TERRYN Herman2,f 1Department of Materials Science and Engineering, Ghent University, Technologiepark 903, B-9052 Zwijnaarde (Ghent), Belgium 2Research Group Electrochemical and Surface Engineering, Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Etterbeek (Brussels), Belgium aLinsey.Lapeire@ugent.be, bemartine@vub.ac.be, cKim.Verbeken@ugent.be, didgraeve@vub.ac.be, eLeo.Kestens@ugent.be, fhterryn@vub.ac.be Keywords: ETP-Cu, crystallographic orientation dependency, corrosion, AFM, EBSD Abstract.
Subsequently, the material was ground and polished, finishing with 1 µm diamond paste.
Marcus, Surface Science, 601 (2007) 1193-1204
White, Journal of the Electrochemical Society, 151 (2004) B479-B483
Yamashita, Corrosion Science, 44 (2002) 1835-1846.

Effect of Temperature on Impact Properties of ZA27 Alloy Zhong Liping1, 2, a, Si Jiayong3, Zheng Ziqiao1 1School of Materials Science and Engineering, Central South University, Changsha 410083, China 2College of Mechanical & Electrical Engineering, Central South University of Forestry & Technology, Changsha 410004, China 3State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China acsfuzlp@163.com Keywords: high aluminium zinc based alloy; impact energy; fracture morphology Abstract.
Introduction Zinc-aluminum alloys were developed as wear resistant materials in 1960’s.
Experimental materials and Methods Experimental material The nominal composition of ZA27 alloy used for the experiment was 27%Al, 2.5%Cu, 0.05%Mg, 0.15%Mn, with a balance of Zn.
Exceeding 200˚C, impact energy rapidly drops down because materials begin to intenerate.
References [1] Bu Jinwei: Journal of Chang Zhou Institute of Technology Vol. 21 (2008), p. 1 [2] Shi Zhongliang, Su Huaqin: Material Science and Engineering (in Chinese) (1992), p. 37 [3] S.C.

Introduction Composite is generally composed of two or more materials whose chemical or physical properties are different.
Experimental 2.1 Materials Water-based PU from RTB Technology Co., Ltd., Thailand was purchased and used as received.
Ramdani, Polymer and Ceramic Composite Materials: Emergent Properties and Applications, CRC Press Taylor & Francis Group LLC, Florida, 2019
Kessler, Handbook of Composites from Renewable Materials, Design and Manufacturing, Scrivener Publishing LLC, New Jersey, 2017
Furukawa, The Microphase-separated Structure of Polyurethane Bulk and Thin Films, Polymer Journal, 41 (2009) 118–124

The physical parameter is: the Young's modulus E = 3×10 10 Pa, the Poisson's ratio of materials ν=0.2 and the material density ρ= 2500 kg/m 3.
Li, Journal of Engineering Mechanics, Vol. 132(2006), p.429 [3] P.C.
Xu, Journal of Sound and Vibration, Vol. 285(2005), p.365 [5] A.N.
William: Schaum's Outline of Theory and Problems of Strength of Materials (McGraw-Hill, New York 1998)
Stubbs, Journal of Sound and Vibration, Vol. 275(2004), p.577 [7] S.

And it is hard to system fully realize indoor similar material simulation test.
The orthogonal design method is a science test method to deal with many factors.
Journal of geotechnical engineering, 2001, 26(4), (in Chinese) [2] Shangyi Zhao et al.
Journal of geotechnical engineering, 2002, 24(3), (in Chinese) [3] Wancheng Zhu et al.
Application of mathematical statistics [M], Science press, 2003 [5] Pengli He.

Goh and Chua described the situational variables based on the following linguistic structure[9]: Action(s) executed on object(s)-worked-on using resource(s) at location(s) with nearby object(s) and nearby action(s) (1) Simultaneously, Wu and Gibb et al identified CAPs as the interaction between deficiencies in work team, workplace, equipment and materials[4].
Merrick, J.R.Harrald, K.Roberts: Safety Science Vol. 45 (2007), p. 1033-1043
Li: Safety Science Vol. 48(2010), p. 845-858
Levin, W.D.Seider, U.Oktem, N.Keren: Journal of Loss Prevention in the Process Industries Vol. 20(2007), p. 113-127
Chua: Journal of Construction Engineering and Management Vol. 135(2009), p. 1181-1189

Materials and Methods Study Area.
Acknowledgements This work was financially supported by the High-level Personnel Scientific Research Project in North China Institute of Water Resources and Electric Power (201207), the Science and Technology Research Guidance Plan Project of the Education Department of Henan Province (12B170001) and the National Natural Science Foundation of China (41101128).
Beijing: Science Press, 2005, 54-55.
Journal of Soil and Water Conservation, 2000, 14(2):19 - 24.
Journal of Natural Resources, 1999, 14(1):62-68.