The electromagneticmachine remained in use until 1959, by which time it was left in the dust by true electronic computers using first vacuum tubes, then transistors, then chips.
Analyse principle of operation, technology feature of single-phase alternating current induced liquid metal electromagnetic pump wave soldering machine.
重点分析单相交流感应式液态金属电磁泵波峰焊接设备技术的工作原理、技术特征；
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Thirdly, defrosting electromagnetic valve is arranged on the machine table, is used to control the machine condensing pressure, avoid machine low pressure evaporator condensate, causing ice jam.