题目内容
图中游标卡尺读数为______mm,螺旋测微器读数为______mm.![](http://thumb.1010pic.com/pic2/upload/papers/20140610/201406102119116766273.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140610/201406102119116766273.png)
游标卡尺主尺读数为52mm,游标尺上第7个刻度与主尺上某一刻度对齐,因此游标读数为:0.05×7=0.35mm,所以最终读数为:52mm+0.35mm=52.35mm;
螺旋测微器固定刻度读数4.5mm,可动刻度读数为0.01×18.6mm=0.186mm,所以金属丝的直径为:4.5mm+0.186mm=4.686mm
故答案为:52.35,4.686.
螺旋测微器固定刻度读数4.5mm,可动刻度读数为0.01×18.6mm=0.186mm,所以金属丝的直径为:4.5mm+0.186mm=4.686mm
故答案为:52.35,4.686.
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