在讨论了港口企业实施多元化经营的可行模式与产业选择之后，本文对港口企业多元化经营与绩效关系进行了实证分析。
After discussing the feasible mode and the industrial choice of the diversification, the text has carried on the positive research of the performance relation and the diversification.
承担服务港口职能，由于历史原因，相对实行多元化经营。
The company services for the port, because of the history reason, its business scale is relative diversification.
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