求翻译：用 表示停机风电机组故障时间段的实测风速，用 表示停机风电机组故障时间段的实测风向，用 专家系统数据库中的已有近似风速，用 表示专家系统数据库中已有近似风向。理想情况为：∃ 且 ，但若风电场运行时间较短，专家系统中某些输入暂没有输出数据。因此使用专家系统计算时，根据不同数据情况采用下三种方式进行处理：：是什么意思？

With said stop wind turbine failure time measured wind speed, with said stop wind turbine failure time measured wind direction, has been the approximate wind speed in the expert system database, said the expert system database has been the approximate wind direction. Ideally: ∃, but if the wind farm

He said stop wind motor assembly time of the failure of real-time monitoring, wind-down time of the failure of the motor assembly of real-time monitoring, wind in the database using the expert system has been used for similar wind speed, the system has been in the database have similar wind directio

With the expression engine off wind electrical machinery fault time section actual wind speed, with the expression engine off wind electrical machinery fault time section actual wind direction, had the approximate wind speed with the expert system database in, with expressed in the expert system dat

Down wind turbine failure time period measured wind speed, measured wind down wind turbine failure time period, use of expert system database is the approximate wind speed, says expert system database have the approximate wind direction. Ideal for: ∃ and, but if the wind farm a short running time, e

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