Machine Design & Research ›› 1990, Vol. 6 ›› Issue (02): 31-33+37.doi: 10.13952/j.cnki.jofmdr.a0031
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URL: https://www.qk.sjtu.edu.cn/mdr/EN/10.13952/j.cnki.jofmdr.a0031
https://www.qk.sjtu.edu.cn/mdr/EN/Y1990/V6/I02/31