边际实物产品，边际生产实物量从利用一单位额外可变资源加上其他固定资源中产生的总产品的变化。
The change in total product that results from employing one additional unit of a variable resource together with other fixed resources.
边际实物产品，边际生产实物量从利用一单位额外可变资源加上其他固定资源中产生的总产品的变化。
The change in total product that results from employing one additional unit of a variable resource together with other fixed resources.
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