In Marx's theory of labor creating value, productive labor has double meanings.
马克思论述的生产劳动有两种含义。
When the society enters the times of the intellectual economy, the labor creating value more and more rely on the new production factor such as science and technology, knowledge, capital etc.
当社会进入知识经济时代时，创造价值的劳动越来越依靠科技、知识、资本等新的生产要素。
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