This paper studied the migrant workers flow back such a special phenomenon in the large environment of rural surplus labor transfer.

本文所研究的是在农村剩余劳动力转移的大环境下农民工“回流”这样一个特殊现象。

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This paper introduced a special machine technology of applied in aluminium metallurgy profession for dense phase transfer pipe paint anti-corrosive and anti-friction.

本文介绍了一种铝冶炼行业氧化铝浓相输送管道防腐耐磨剂刷涂专机技术。

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Base on IGBT inverter for arc welding, a new current wave form control method is put forward in this paper which is special for process of short circuit transfer for CO2 arc welding.

本文针对IGBT弧焊逆变器，提出并实现了适于短路过渡CO_2气体保护焊的输出波形控制方法。

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