There is little mobility among the various types of machine operators within the mineral and metal processing industry.
矿产和金属加工业的各类机器操作员之间具有很小的流动性。
Take standardize plant of metal processing industry, public works and other ancillary facilities as the main contents of construction.
以金属加工行业标准化厂房和其他公用工程及附属设施为建设内容。
There is little mobility among the various types of central control and process operators within the mineral and metal processing industry.
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。
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