Grain issue is the key that economy of Heilongjiang reclamation area works all the time.
粮食问题一直是黑龙江垦区经济工作的重点。
There are many types of towns in Heilongjiang Reclamation Area, and the functions of different types of towns are therefore different.
垦区的小城镇有多种类型，不同小城镇类型有不同的功能。
Irrigation agriculture is a pillar industry in Heilongjiang Reclamation area. At the same time, large irrigation area is an important marketable grain base.
灌溉农业是黑龙江垦区的支柱产业，而大型灌区又是商品粮生产的重要基地。
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