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第9(单选) 经纬仪对中是( );整平是使仪器竖轴铅直和水平度盘水平。

单选题
2021-09-06 20:37
A、气泡居中
B、仪器中心与测站点安置在同一铅垂线上
C、准轴水平
D、轴水平
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正确答案
B

试题解析

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