the table includes fields for product id, product name, quantity per unit, and unit price 的表。此表包括產(chǎn)品id、產(chǎn)品名稱、單位數(shù)量和單價(jià)的字段。
the result indicated that, the output value per labour force, the output value of unit field area, the output value per person are the major indexes of the first principal components, the balance index of n, the output value per labour force and the pesticide quantity per unit field area are the major quotas of the second principal components, the balance index of p, the balance index of k and the output value per person are the major indexes of the third principal components 結(jié)果表明:勞均產(chǎn)值、單位耕地產(chǎn)值、人均產(chǎn)值是決定第一主成分的主要指標(biāo);氮平衡指數(shù)、勞均產(chǎn)值、單位耕地施用農(nóng)藥量是決定第二主成分的主要指標(biāo);磷平衡指數(shù)、鉀平衡指數(shù)、人均產(chǎn)值是決定第三主成分的主要指標(biāo)。