Operation experience showed that the new dual - motor dual - frequency centrifuges used in municipal sludge treatment process, has achieved excellent result in energy - saving, and emission reduction.
运行实践表明，新型双电机双变频离心机应用于市政污泥处理工艺，达到了节能减排的优良功效。
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In PLL frequency synthesizers, dual modulus prescaler is a bottleneck in achieving a higher operation speed.