石油，天然气和化工工艺操作员监控和经营石油，石化和化工厂并且监控，调整和维护这些工厂的处理元件和设备。
Petroleum, gas and chemical process operators monitor and operate petroleum, petrochemical and chemical plants and monitor, adjust and maintain processing units and equipment in these plants.
但是液化天然气的新工艺改变这个局面。
But the new process of liquefying natural gas may change that.
为了天然气的开发、储运和应用，高效的天然气净化工艺有着重要的实际意义。
For the development, storage and application of natural gases, the better purifying technique is very important.
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