英文關鍵字
adventure
archeology
background
closeup
coil
detecting
detector
device
earth
electrical
electronic
equipment
field
find
gold
ground
hand
hidden
hobby
human
hunt
hunter
industry
jewellery
job
keeps
leg
lost
magnet
man
metal
military
money
moss
outdoors
people
precious
recreational
ring
search
seeker
sensitive
sensor
shows
summer
technology
tool
treasure
valuable