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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Approaching the parameters of distillation operation through phase law and diagrams, the relation of vapour-liquid equilibrium shows directly.

综合相图、相律及相平衡关系，分析精溜操作中的状态参数，使抽象的相平衡内容具体、直观。

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Pilot scale operation results are reported for liquid phase alkylation of benzene and ethylene with a new circulation process.

介绍一种将苯和乙烯液相烷基化部分反应液直接循环到反应器作为反应原料的循环反应新工艺。

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