The variety of equation type and multiple spike type were more economic than weighty spike type under general production condition, and easily got high and stable yield.
但在目前的生产条件及生产水平下则是以均衡型、多穗型品种较为经济，且易获得高产稳产。
The variety of equation type and multiple spike type were more economic than weighty spike type under general production condition,...
但在目前的生产条件及生产水平下则是以均衡型、多穗型品种较为经济，且易获得高产稳产。
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