And neither the purchase nor the sale changes the physical quantity of the commodity available to the market.

期货也改变不了市场上可购买的货物的物理数量。

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Most modern publishers purchase printing services in the open market, solicit manuscripts from authors, and distribute their wares to shops for final sale.

大多数当代出版商在公开市场上购买印刷服务，向作者征稿，向书店分发成品书供销售。

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Shipbroker of Maersk Broker, focusing on Newbuildings & Sale and Purchase of all types of vessels with experience in European market, and familiar with both European and Asian markets.

现为马士基船舶经纪人，专注于各种船型的新造船和买卖船业务，具有欧洲市场从业经历，熟悉欧洲和亚洲市场。

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There has always existed since the early nineteenth century a secondary market in the sale and purchase of patents, but these firms make use of modern developments in corporate law, finance, and technology to reap new value for inventors or other firms who lack either the knowledge or resources to monetize their innovation assets.

FORBES: Policy Debates On Patents Should Focus On Facts, Not Rhetoric