transformation and speed regulation technology
transformation and speed regulation technology
改造和调速技术
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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Combined with the variable frequency transformation of the induced fan in my company, the variable frequency speed regulation technology is ripe, and the electricity-saving effect is significant.
结合我公司引风机的变频改造，认为变频调速技术已经成熟，节电效果显著，在其他转机上可以应用。
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