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da peng li kai jin tuo la ji
Pages: 89
Year: Issue:  8
Journal: Farm Machinery

Abstract: <正>由于传统大棚高度比较低,不便使用机械化耕作、种植,人工不仅工作效率低,劳动强度大,而且长期在高温高湿的大棚中劳动,种植户容易患上关节炎、腰腿疼等病症。与各自为战的普通大棚相比,连体棚的保温效果更好。但几个大棚连在一起,一旦发生病虫害,
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