It imports raw materials and intermediate goods and exports final goods.
它进口原材料和中间品，出口制成品。
Firm B is a downstream firm that produces final goods using intermediate goods and capital as input.
企业b是下游企业，有中间产品和资本作为输入品生产最终产品。
Subsidiary corporation B is a downstream firm that produces final goods using intermediate goods and capital as input.
子公司B是下游企业，用中间商品和资本作为输入生产最终商品。
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