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毎日1問、正解しても賞品なし、楽しみが目的

2019-12-09View Original

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37. オイルポンプのメカニカルシールスプリングのねじり方向は、軸の回転方向()と同じでなければならず、これによってねじるほど締まるようになる。?A、同じ B、反対 昨日の問題の答え:B 36. 往復式圧縮機のシリンダーとスライドガイドを同心にするには、()を使用できる。?A、マイクロメーター測定 B、音響電気法 C、ダイヤルゲージ測定

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