【单选题】【消耗次数：1】
在生产实践中，常要求各种运料小车在各工位之间作自动来回运动，来运送各种工业零部件，这需要电动机进行（ ）。
①
异地控制
②
顺序控制
③
自动往返控制
参考答案：
复制
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