portable transit是什么意思 portable transit怎么读
portable transit的用法和样例
- The surveyors were adjusting the transit to take the measurements.
勘测员正调试转镜经纬仪进行测量。 - Because of the special bucket foundation constructure, it is difficult to measure the bucket foundation installation error by using transit.
根据桶形基础的特殊形式，采用普通经纬仪对桶基安装误差进行测量是比较困难的。
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