Acta Metallurgica Sinica (English Letters) ›› 1992, Vol. 5 ›› Issue (12): 516-520.
• Research paper • Previous Articles Next Articles
LI Ying;WANG Xiaotian;JIN Zhihao Xi'an Jiaotong University,Xi'an,China SHl Guoshun Beijing Measuring and Analysing Center.Beijing,China