全国中文核心期刊
中国科技核心期刊
RCCSE核心期刊
SCD核心期刊
Design and experiment of combined seed metering device
LI Juanjuan, ZHANG Heping, HU Bin, BI Xinsheng, ZHANG Tongyuhao, LI Shuzhuo
Journal of JIangsu University(Natural Science Eidt . 2020, (5): 551 -556 .  DOI: 10.3969/j.issn.1671-7775.2020.05.009