underground survey

基本解释坑内测量,地下测量

网络释义

1)underground survey,坑内测量,地下测量2)underground survey,地下测量<测>3)underground leveling,坑内水准测量4)subsurface water measurement,地下水测量5)underground engineering survey,地下工程测量<测>6)subway survey; underground railway survey,地下铁道测量<测>

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