因此，对往复式压缩机系统进行变频技术改造还是比较有意义。
Therefore, the reciprocating compressors system frequency conversion technology reform still have meaning.
本文通过工程改造实例，详细介绍炼铁高炉冲渣水系统变频技术改造的情况。
Combining with the engineering example, the transformation of frequency conversion technology of cooling water for blast furnace slag is introduced in detail.
2013年，开展中电投集团铝业变频技术改造等节能领域合同能源管理项目实施。
In 2013, implemented frequency conversion technology retrofit under Energy Performance Contracting for aluminum fabrication projects of China Power Investment Corporation.
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