Var optimization is core problem of voltage stability and economic operation of electric power system, also important measure to improve voltage quality.

无功优化是电力系统电压稳定与经济运行的核心问题，也是提高电力系统电压质量的重要措施。

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Note that when the var and scope attributes are present, the type of data structure used by JSTL to represent the parsed document is implementation-specific, allowing for vendor optimization.

注意，当var和scope属性存在时，JSTL用于表示分解后的文件的数据结构类型以实施为导向，从而厂商可以对其进行优化。

youdao

Note that when the var and scope attributes are present, the type of data structure used by JSTL to represent the parsed document is implementation-specific, allowing for vendor optimization.

注意，当var和scope属性存在时，JSTL用于表示分解后的文件的数据结构类型以实施为导向，从而厂商可以对其进行优化。

youdao