“eight irrigation districts at Guanzhong”的概念、定义、翻译、参考文献-科学参考

单词	eight irrigation districts at Guanzhong
释义	eight irrigation districts at Guanzhong Encyclopedia 工学农田水利史释 eight irrigation districts at Guanzhong关中八惠中华民国年间，水利专家李仪祉倡导修筑的陕西关中地区八个灌区的统称。
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