【单选题】【消耗次数：1】
加工T10A淬火材料零件上的φ0.15㎜的小孔，适合采用的方法是：（）。
①
钻削加工
②
电火花穿孔加工
③
超声波穿孔加工
④
镗削加工
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相关题目
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“钻—扩—铰”类加工方案适合加工：（）。
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未淬火钢和铸铁以及有色金属零件上的外圆
②
淬火钢零件上的孔
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hyponymy
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polysemy
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homonymy
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increasing use of abbreviation
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