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2019-02-02View Original

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本帖最后由 156026692 于 2019-2-2 09:38 编辑 bg2.png判断题规则:1、两道题回答全错给予积极参与+2财富,回答一错一对给予+4财富,两道题回答全对给予+6财富。2、如只回复一个答案,除非明确了是哪道题的答案,正确+4财富,错误+2财富,否则一律按积极参与+2财富执行。3、回答奖励每人限一次。4、每个回复限评分一人次。5、回复后可见答案及答案解释。6、奖励在48小时内有效,逾期不予奖励。 学*又拿奖,天天来逛逛 1、磁力泵的振动值超差可能由于汽蚀余量不合格导致。( ) 2、振动分析时,频谱图中横坐标是转速,纵坐标是幅值。( ) 答案:正确,错误(频谱图中横坐标为频率,纵坐标代表各个谐波信号的幅度值)
Reply #22019-02-02
正确----------------正确
Reply #32019-02-02
1、磁力泵的振动值超差可能由于汽蚀余量不合格导致。( 对 ) 2、振动分析时,频谱图中横坐标是转速,纵坐标是幅值。( 错 )
Reply #42019-02-02
第一题是对的,第二题也是对的

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