“water efficiency of canal system”的概念、定义、翻译、参考文献-科学参考

单词	water efficiency of canal system
释义	water efficiency of canal system Encyclopedia 工学灌溉输水工程释 water efficiency of canal system渠系水利用系数灌溉渠系的净流量和毛流量之比值，或净水量与毛水量之比值。
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