仿真结果表明：新型观测器克服了传统方法存在的区域不稳定的缺点，能够在全速范围内准确辨识转速。

Simulation results show that new observer overcomes the disadvantage of the existence of the unstable regions and can identify speed accurately in full speed region.

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而且，用立车加工叶片，消除了落地卧式车床的转速低、回转不稳定等缺点。

Besides, using the vertical lathe to turn vanes can eliminate the defects that a floor-type horizontal machine is low in rotary speed, unstable in slewing and the like.

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