大多数商品的最高价是替代品的成本。

The ceiling for most commodities is the cost of substitution.

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它的呈现替代了曾经在洁净间使用的全部地上商品。

Its present alternative to all the goods that have been used in the clean room.

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它的呈现替代了曾经在洁净间使用的全部地上商品。

Its present alternative to all the goods that have been used in the clean room.

youdao