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用M—1测Za时,第一次读数后要经过好些手续才能进行第二次读数。这样做手续多、效率低。我们用磁秤时,也每次都要经过转180°读数。这一转动则很快,方向绝无对不准之虑,这是由于磁秤底盘下有为转180°的止动片。仪器水平转到180°时就碰上止动片,不能再向前转了。转不到180°时也碰不上止动片。因此碰上止动片,仪器正转动了180°。根据上述这个道理,我们进行了M—1的改装。M—1上的微动螺丝5使整个支架A、B和B对桿14
With M-1 test Za, after the first reading to go through a number of procedures to carry out the second reading. This procedure is more and less efficient. When we use a magnetic scale, we also have to go through 180 ° readings each time. This rotation is very fast, the direction of no misconceptions, this is due to the magnetic balance under the plate for the rotation of 180 ° stop piece. When the instrument is turned to 180 °, it will stop the stopper and can not turn forward. Turn less than 180 ° can not touch the stopper. So hit the stop piece, the instrument is turning 180 °. Based on the above reason, we carried out the M-1 modification. Micromill screws 5 on M-1 make the entire bracket A, B, and B pair 14