矿物和金属加工行业内的各种类型的中央控制和过程操作员的流动性不大。
There is little mobility among the various types of central control and process operators within the mineral and metal processing industry.
随着经验的积累，中央控制和过程操作员可能晋升为矿物和金属加工主管职位。
With experience, central control and process operators may progress to supervisory positions in mineral and metal processing.
随着经验的积累，机器操作员可晋升到运营商矿产和金属加工的中央控制和处理操作员。
With experience, machine operators may progress to central control and process operators in mineral and metal processing.
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