Advance of Life-cycle Ecological Design Method for Plant Protection Machinery
YAO Hui-chun,XU You-lin,ZHENG Jia-qiang,ZHOU Hong-ping
JOURNAL OF NANJING FORESTRY UNIVERSITY . 2004, (05): 99 -102 .  DOI: 10.3969/j.jssn.1000-2006.2004.05.026