(名词解析)
灌水定额
答案解析
综合灌水定额
(简答题)
综合灌水定额的作用?
农田水利(irrigation and drainage)
灌溉定额(M)
(填空题)
The full title of the U.K. is the United Kingdom of ()and ()
(单选题)
灌水率图的修正时,改变灌水定额,灌水定额的调整值不应超过原定额的()
灌水率图的修正原则?
灌水率