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毎日1問、正解しても賞品なし、娯楽を目的と

2019-12-12View Original

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40. 静圧軸受のオイルフィルム圧力の確立は、()によって保証される。?A、供給圧力 B、回転速度 C、負荷の大きさ? 昨日の問題の答え:C 39.オーバーフローバルブは、油圧システム内の()を安定した状態に保つために使用される。?A、流量 B、方向 C、圧力

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