浅谈中低产田改造和节水灌溉技术在蒲峪渠灌区的推广应用
천담중저산전개조화절수관개기술재포욕거관구적추엄응용
On Transformation of Middle-and-low-yielding Fields and Promotion and Application of Water-saving Irrigation Technology in Puyu Canal Irrigated Area
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