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【泵技术版每日一题】2020年3月4日(板块福利:公布答案前答对奖励10财富)

2020-03-05View Original

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123.决定滑动轴承稳定性好坏的根本因素是轴在轴承中的(????)。 A、旋转速度 B、轴向窜动 C、偏心矩大小 D、润滑条件 2020年3月3日第122题答案A 122.刻度值为0?02mm/1000mm的水平仪,气泡移动一格,水平仪底面倾斜角度为(A)。 A、4" B、0?02° C、0?02rad D、2" (次日公布前一天答案,公布前答对奖励10财富,公布后答对奖励5财富,参与奖励3财富) 最近有点忙,发题和回复评分有点慢,但是再忙再晚我也会发,也会回复大家,感谢大家一直支持!

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