DJTA 道琼斯交通平均指数

The Dow Jones Transportation Average is a price-weighted average of 20 transportation stocks traded in the United States. The average was started back in 1884.

道琼斯交通平均指数是20种在美国买卖的交通业股票的股价加权平均。
道琼斯工业平均指数于1884年始创

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