Thursday, September 15, 2022
Thursday, September 15, 2022
问题:渍害(subsurfacewaterlogging)定义
Wednesday, December 27, 2023
Saturday, April 1, 2023
Thursday, September 15, 2022
Wednesday, January 24, 2024
Thursday, July 20, 2023
Friday, December 22, 2023
问题:防治土壤盐碱化的水利技术不包括()。A、种植水稻B、井灌井排C、灌水冲洗D、放淤改良
Wednesday, January 3, 2024
Sunday, March 24, 2024
问题:下面的灌溉方法中,哪种灌水方法属于地上灌溉()。A、畦灌B、滴灌C、喷灌D、沟灌
Sunday, March 31, 2024
Thursday, September 15, 2022
Thursday, May 18, 2023
Sunday, March 31, 2024
问题:渠道设计流量、加大流量、最小流量在设计中作用各是什么?
Wednesday, December 6, 2023
Monday, October 30, 2023
Thursday, September 15, 2022
Wednesday, February 14, 2024
Monday, March 18, 2024
Thursday, September 15, 2022