variable velocity variable frequency device
... 遥感技术在农业的应用 remote sensing applications in agriculture 变频调速装置 variable velocity variable frequency device 输油管道加压泵站 line booster pumstation ...
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variable velocity variable frequency device
变速变频装置
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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In this issue, a device of variable velocity variable frequency on medium-high voltage three-level is developed to reduce energy consumption and improve the cost-effective for the previous problems.
针对这些问题，本课题研究开发了一种中高压三电平变频调速装置，降低电机的能耗、提高系统的性价比。
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