The stabilization of metal transfer in the range of high continuous current is solved, and the high deposition rates MAG process without helium in shielding-gas mixture is realized.

解决了连续大电流区间熔滴过渡稳定性问题，实现了无氟混合气体保护的高熔敷率MAG焊工艺。

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Three kinds of global finite-time feedback stabilization approaches based on continuous state feedback are given.

给出了三种基于连续状态反馈的全局有限时间状态反馈镇定方法。

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The remote control device crystal frequency stabilization using pulse amplitude modulation transmitter, A simpler circuit, high frequency stability, launched 28MHZ are continuous carrier amplitude.

该遥控装置采用晶体稳频脉冲调幅发射机，电路较简单，频率稳定度高，发射的是间断的28MHZ等幅载波。

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