submarine tunnel survey
... 海底施工测量submarine construction survey 海底隧道测量submarine tunnel survey 海福德椭球Hayford ellipsoid ...
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结合嘉兴电厂海底隧道工程，介绍了沉管隧道对接的测量理论和实施措施。
Combining with the undersea tunnel engineering in Jiaxing power plant, the measurement theory and method for submerged tubes to be joined together undersea are present.
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