What does 勘探 (kāntàn) mean in English?

Card 1458HSK Level 41458/3571
CARD1458
PROGRESS41%
勘探
kāntàn
prospect for; prove up(Verb)
Click to reveal
← Previous↑ DeckNext →

Reveal: Click/Space/Enter/↑↓/w/s/j/k•Navigate: ←→/h/l/a/d