The surveyors were adjusting the transit to take the measurements. 勘測員正調試轉鏡經緯儀進行測量。
Because of the special bucket foundation constructure, it is difficult to measure the bucket foundation installation error by using transit. 根據桶形基礎的特殊形式,採用普通經緯儀對桶基安裝誤差進行測量是比較困難的。