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。
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。
Mainly used for human consumption such as freeze drinks, mix wines, coolfoodstuffs. and also used for chemical cooling, food processing, fisheries, poultry-processing, meat plants etc.
中雪管冰机常为人们日常生活所食用， 如冰镇饮料，调制酒水，保鲜，冷敷等，同时也用于食品加工，水产加工，家禽屠宰，肉制品加工等行业。
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