Design and performance of fluidized sand biofilter based on ultrasonic positioning technology
ZHANG Haigeng, LIU Andong, XU Jingcheng, Gao Xiating, ZHANG Yulei,
Fishery Modernization . 2023, (1): 34 .  DOI: 10.3969/j.issn.1007-9580.2023.01.005