Mobility to other petroleum or chemical processing plants is possible, but may be limited by the usual practice of training and promoting workers from within the establishment.

可能调动到其他石油或化学处理工厂，但可能会受到部门内员工培训和晋升的一般惯例的限制。

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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.

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。

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The modern field includes power plants, aircraft and airports, chemical-processing plants, and water-treatment facilities.

现代这个领域还包括：发电厂、航空港、化学处理厂和污水处理设备等。

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The chemical is kept pressurized as part of the cooling system in meat processing plants.

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Eximbank loans made in 1985 for several meat-processing plants, copper-processing facilities, a turnkey chemical complex, a color-television tube plant, a glass funnel facility, a process computer used in steel manufacturing, and a tractor factory remain unpaid.

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