salt proximity survey

Airborne Survey and Remote Survey Center of Nuclear Industry

contingent survey [= extraordinary survey

Cross-section Survey and Profiles Survey

survey of existing line；survey of existing railway

topical survey subject survey

(quasi-)proximity

airborne proximity indicator

automobile proximity warning

Capacitance Proximity Fuze

CCSDS proximity-1 protocol

Close Proximity

close-proximity method

contact-proximity aligner

CW radar proximity fuze

depth proximity

direct radiation proximity indicator

Double proximity image intensifier

eddy current proximity detector