商业夹是一种多层pp片材所制成的产品，而本机是专对此产品而设计的全自动化制造机。
Business file folder is a product made of multiple layer PP flat sheet and this machine is a fully automatic machine specified used to make this product.
植物中抗病基因所决定的抗病性是一种高水平的品种对病原菌小种的专化抗性。
Plants disease resistance controlled by the resistance gene (r gene) is a resistance with high specificity at the cultivar to race level.
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