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毎日1問、正解しても賞品なし、娯楽を目的とする

2019-11-18View Original

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16. 熱膨張を利用した組み立て法では、穴と軸の隙間に一定の過剰量の余裕がある場合、( )を加熱して膨張させる。?A、軸 B、穴???C、穴と軸?昨日の問題の答え:基孔制?15.軸と転動軸受の内輪が噛み合う軸は(基孔制)を採用する。?A、基孔制 B、基軸制 C、基孔制

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