短語詞組短語Yield of nutrient substance 有機(jī)物產(chǎn)量anti -nutrient substance 抗?fàn)I養(yǎng)物質(zhì)nutrient substance balance cycle 物質(zhì)良性循環(huán)nutrient substance cycling 營(yíng)養(yǎng)物質(zhì)循環(huán)degradat -ion ratio of nutrient substance 營(yíng)養(yǎng)物質(zhì)降解率 返回 nutrient substance