1. Department of Agricultural Engineering, College of Engineering, China Agricultural University, Beijing, China
2. Beijing Vegetable Research Center, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
3. Department of Bioresource Engineering, McGill University, St. Anne de Bellevue, QC, Canada
4. School of Agriculture and Food Sciences, University of Queensland, Brisbane, QLD, Australia
5. Institute of Bee Research, Chinese Academy of Agricultural Sciences, Beijing, China
6. Department of Agriculture Engineering, College of Mechanical and Electrical Engineering, ShiheziUniversity, Shihezi, China
7. Department of Scientific Research, Lanzhou University of Finance and Economics, Lanzhou, China