Human knowledge has three forms of existence, i. e., the form of consciousness, the form of marks and the form of substance.

人类的知识有三种存在形式：意识形式、符号形式、物化形式。

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The knowledge of the first existence form represents a kind of latent economy value, its wanting to pass the second existence form then can the thing turn in product.

第一种存在形式的知识代表着一种潜在的经济价值，它要通过第二种存在形式才能物化于产品之中。

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The knowledge of the first existence form represents a kind of latent economy value, its wanting to pass the second existence form then can the thing turn in product.

第一种存在形式的知识代表着一种潜在的经济价值，它要通过第二种存在形式才能物化于产品之中。

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