现在使用的大棚骨架强度低、骨 架厚、使用寿命短，农业生产成本高；
The existing shed skeleton has advantages of low strength, thick skeleton, short service life and high agricultural production cost;
提高农业生产力，降低农产品生产成本是提高农产品价格竞争优势关键。
Increasing agricultural productivity while decreasing the production costs of agricultural products is the key to enhance the superiority in competition of agricultural product price.
提高农业生产力，降低农产品生产成本是提高农产品价格竞争优势关键。
Increasing agricultural productivity while decreasing the production costs of agricultural products is the key to enhance the superiority in competition of agricultural product price.
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