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[3] Hu Shunjun, Tian Changyan, Song Yudong．Determination and calculation of soil permeability coefficient[J]．Transactions of the Chinese Society of Agricultural Engineering, 2011, 27(5): 68-72
[6] Yang Jinling, Wang Jingkuan, Zhang Ganlin.

Ground Pressure and Strata Control 2004, 21(3): 17-19. ( in Chinese) [4] LIU A-iguo,MIAO Tian, WANG Yun-fang, et al Stress Analysis and Parameter Optimization of Coal Pillar in Gateway of Fully Mechanized Caving Face[J].
Chinese Journal of Rock Mechanics and Engineering, 2004, 23(20): 3 475-3 479. ( in Chinese) [6] XIE Guang-xiang, YANG Ke,CHANG Ju-ca.i Effect of Coal Pillar Width on the Stress Distribution Laws of Surrounding Rocks in Fully Mechanized Top- coal Caving Mining Face[ J].

Materials Materials used in the experiment include: quicklime was obtained from the Nanjing Tianning quarry of Jiangsu province and the effective CaO content was 87%, the fineness was 320 m2/kg.
Yang, Studies on the traditional techniques and the conservation method of polychrome paintings on wooden structures of Chinese traditional buildings.

Electronic Science And Technology. 8, 31-33 (2007) [3] Zhang Qin, Tian Baoyu: Automatic Recognition Technology for Communication Modulation Signals and its Prospects.
Instrumentation Customer. 2, 62-64 (2011) [8] Fu Shiping, Yang Li, Li Jing: Modulation Classification Algorithm Based on Instantaneous Parameter.

H, Langmuir, Vol.26 (2010), p.13528-13534 [14] Yang S.
Y, Chen S, Tian Y. et al,.

[3] Jin-Ku Liu, Xiao-Hong Yang, Xin-Gang Tian: Powder Technol.

Reference [1] Yang Wen,2001,Design of axial drilling machine with multicranks[J].Science and technology information development and economic,11(2):76
[3] Tian Jingyun2006, Discussions on problems of virtual restraint in planar mechanism[J].

References [1] Zhigang Tian, Ming J.Zuo.
Reliability allocation through cost minimization[J].IEEE TRANSACTIONS ON RELIABILITY.52(2003):106-111 [4] Hao Qingbo, Yang Zhaojun, Chen Fei, et al.

Li Yang[8] use Na2SiO3·9H2O as a raw material, ethyl acetate as latent acid reagent, the SiO2 powder was prepared amorphous.
Tian and L.M.

[5] J.Liua, Y.L.Tian, Y.J.Chen, J.Y.Liang et al.: Materials Chemistry and Physics Vol. 122(2010), p. 548-555
[8] G.X.Zhang, S.H.Sun, D.Q.Yang et al.: Carbon Vol. 46(2008), p. 196-205