Conclusions According to this study, the design of the Alexander appliance and the Alexander technique are helpful for stability of extraction therapy.

结论初步研究结果表明，亚历山大矫正技术中矫治器设计及其矫正理念有利于拔牙矫正后的稳定。

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According to this study, the optimal design in the size and shape of the linking pipe helps to reduce the sectional area for stability.

研究表明：如果合理地选择设计连接管断面的尺寸和型式，就可以进一步减小有连接管的尾水调压室水位波动稳定所需的断面积。

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In choosing the hardware and software, system reliability, stability is the precondition and basis according to the needs of design, procurement of hardware and software.

在软硬件的选择上，应以系统可靠性高、稳定性强为前提，并在此基础上根据设计的需要，采购软硬件。

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