underground survey meaning in English
井下测量(又称“矿井测量”)
井下测量，*矿井测量
坑道测量
坑内测量，地下测量
矿井测量
Examples
- Article 24 every unit and individual shall have the duty to protect permanent above - ground and underground surveying markers as well as temporary surveying markers still in use ; any unit or individual may not damage , destroy , or without authorization remove surveying markers , nor seize or occupy the land used for permanent surveying markers
第二十四条各单位和个人都有保护地上和地下的永久性测量标志以及在使用中的临时性测量标志的义务，不得损毁或者擅自移动，不得侵占永久性测量标志用地。