CSCD核心库来源期刊
全国中文核心期刊
中国科技核心期刊
中国农林核心期刊
Theoretical calculation of axial clearance in medium or high pressure external gear pumps
LI Yu-Long, SUN Fu-Chun
Journal of Drainage and Irrigation Machinery Engin . 2012, (2): 147 -152 .  DOI: 10.3969/j.issn.1674-8530.2012.02.005