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Materials Science Forum (vols. 473-474), (2005 ) 415-420
Materials Science and Engineering A 303, (2001) 292-301
Materials and Design 30, (2009) 376–386
Journal of Materials Processing Technology Vols. 164-165, (2005) 924–929
Materials Science Forum Vol. 553, (2007) 257-265

Wrights Liu Weiming （Taizhou Vocational College of Science & Technology, Taizhou Zhejiang 318020,China） Keywords: Artificial cultivation, Dioscorea zingiberensis, Fertilization Abstract.
Hunan Science and Technology Press, 1985，332-367
Journal of Zhejiang Agricultural Sciences，1994（3），105-107
Jiangsu Agricultural Sciences, 2005,（3）:108-111 [6]Li Zhihui.The Correlation study between Drying rate and the content of diosgenin in Dioscorea zigiberensis C.
Journal of Chinese Medicinal Materials, 2004,27（7）:475-476

Acknowledgments The research is supported by National Science Fund of China (51275547), Chongqing application technology research projects (cstc2012gg-yyjs40019) and Science and technology fund of Chongqing (CSTCjjA1481). 8.
[2] Toshiya Tamura, Device Connectivity Technologies using Short-Distance Wireless Communications, Fujitsu Scientific and Technical Journal, vol. 49, no. 2, pp. 213-219, 2013
[3] Baoquan Jin, Yonghong Wang, Qinglin Wang, The Communication System for Power Monitoring in the Underground Coal Mine, Advances in Information Sciences and Service Sciences, vol. 4, no. 21, pp. 459-467, 2012
[4] Xin Zhang, Lei Feng, Bo Du, Zhendong Xiao, Demand analysis and scheme design of coal mine safety monitoring system, Advanced Materials Research, vol. 616-618, pp. 342-345, 2013
[5] Ji-Ping Sun, Technologies of Monitoring and Communications in the coal mine, Journal of the China Coal Society, vol. 35, no. 11, pp. 1925-1929, 2010.

Engineering Materials and Processes, second ed., Springer, New York, 2007
[4] Mukesh Yadav, Ashwin Misra, Aahan Malhotra, Naveen Kumar, Design and analysis of a high-pressure turbine blade in a jet engine using advanced materials, Materials Today: Proceedings. 25, Part 4 (2020) 639-645
Ruffles, The future of aircraft propulsion, Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science. 214 (2000) 289-305
Dorantes-Rosales, Evaluation of Microstructural Deterioration for a Directionally Solidified Ni-Based Superalloy by X-ray Computed Tomography, Journal of Materials Engineering and Performance. 30 (2021) 727–742
Raghunandan, Study on the fatigue behaviour of selective laser melted AlSi10Mg alloy, Materials Science and Engineering A. 781, (2020) 11 pages

Some of the materials have much good comprehensive function, they are difficultly machined because of the material’s high strength, high hardness, or high toughness, high hardness strengthen item, which makes the small-hole cutting more difficulty.
The material of making twist drill is high speed steel & hard alloy, the main material is high speed steel.
Here the small-hole cutting is in the difficult cutting material, there is various non-metal materials, strengthen item nonferrous metal, various difficult cutting metal materials.
Journal of Superhard material engineeing2011, 2:42～46 [2] Summary of super hardness abrasive wheel grinding. 2010,4,6. moliaomoju.net [3] Yan Qiusheng, Syoji K, Tanaka K.
Journal of Mechanical engineeing VOL.37No.2,2001,2P22～25

Forging materials 40Cr adopted rigid visco-plastic flow stress model to definition, type for equivalent strain, as an equivalent strain rate, for deformation temperature.
Journal of Mechanical Science and Technology, 2008, 22(9): 1772-1778
International Journal of Machine Tool Design and Research, 1981, 21(2): 109-127
Journal of Materials Processing Technology, 2009, 209(18-19): 5871-5880
Materials Science Forum, 2008, 575-578: 334-339.

Introduction In the continuing development of materials with improved magnetic properties one of the recent methods is to produce ferromagnets with ultrafine grains including nanocrystalline structures.
Grossinger, R.Sato, D.Holzer, et al., Advanced Engeneering Materials 5 n5 (2003) 285
Kronmuller, R.Fisher, M.Bachman, et al., Journal of Magnetism and Magnetic Materials 203 (1999) 12
Nikitin, Journal of Magnetism and Magnetic Materials 153 (1996) 241
Langdon, Progress in Material Science 53 (2008) 893

The above materials were admixed thoroughly and then ground to the required consistency in a three roll mixer.
Thixotropic Behavior Thixotropy of paste materials has often been quantified by measuring the surface of what is called the ‘thixotropic loop’ or at least a surface linked to this thixotropic loop [10-12].
Rizzi: International Journal of Production Economics Vol. 112 (2008), p. 548
Hogan: Meat Science Vol. 74 (2006) p. 113
Ger: Journal of materials processing technology Vol. 197 (2008), p. 284

But the process of SiC ceramics is more difficult than other materials due to the poor machinability and high sintering temperature [1-3].
Nano-process of SiC Ceramics by Molecular Simulation，Advanced Materials Research Vols. 189-193 (2011) p 3097-3102 [4] Gogotsi Y G, Welt S, Eesoy D A.
Key Engineering Materials 2006, 315-316: 792-795
Study on Precise Rubbing Technology of HIPSN Ceramic Balls[J]．13CCAT，Key Engineering Materials, 2006, 304-305:364-368
Journal of Tianjin University, 2000, 33(5): 652-656 (In Chinese) [10] Juping Ren, Ke Zhang, Yulan Tang.

Sometimes the Casson fluid model is stated to fit rheological data better than general viscoplastic models for several materials [1, 2].
Journal of Physics IOP: Conference Series. 14,168–79(2005)
Alexandria Engineering Journal 55.2 (2016) 1595-1606
Alexandria Engineering Journal: 524577–582(2013)
International Journal of Engineering Science.34, 10, 1145–1156(1996)