题目内容
左图是用游标卡尺测量某金属圆筒外径的示意图,由图中可以读出该圆筒外径的测量值为______________cm。右图是用螺旋测微器测量某金属棒直径的示意图,由图中可以读出该金属棒直径的测量值为______________mm。
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/2014082500214621917107.jpg)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/2014082500214621917107.jpg)
(1)2.360;(2)2.630
试题分析:游标卡尺的读数分2部分,一部分是游标尺零刻度线左侧读出主尺上毫米的整数部分即23mm,第二部分是从游标尺上读出与主尺刻度线对齐的刻度线是第几条,即第12条与主尺对齐,那么这部分读数为
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825002146235818.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825002146250506.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825002146266979.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825002146281499.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/20140825002146297383.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140825/201408250021462971001.png)
![](http://thumb2018.1010pic.com/images/loading.gif)
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