In a word, the chief question is to solve the balance of nitrogen phosphorus and potassium if the production of three river plain, Heilongjiang province albic rice soil need continue development.
总之，为使三江平原白浆土型水稻土区水稻生产持续发展，首要的问题是实施平衡施肥的问题，即控制氮肥的投入，减少磷肥的投入，适量补充钾肥。
参考来源 - 三江平原白浆土型水稻土氮磷钾养分平衡的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Based on the compositing characteristics of underground water resources and cities of Haihe River Basin, cities can be divided into three types-piedmont plain, median plain and coastal plain.
依据地下水资源与城市的组合特征，将海河流域平原区的城市划分为山前平原、中部平原和滨海平原三种类型。
When enjoying holidays in Serengeti Plain, I spent three hours by the riverside watching a small group of wildebeests bracing themselves for stepping into the river to drink water.
在非洲的塞伦盖蒂大草原度假时，我曾一连3小时坐在河边，看一小群角马如何鼓起勇气下河饮水。
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