英文關鍵字
aht
anchor
background
boat
chatham
chemistry
control
diesel
energy
engine
equipment
factory
fuel
gauge
heat
hold
industrial
industry
interior
machine
main
marine
mechanic
mechanical
mechanism
metal
motor
naval
oil
panel
people
pipe
plant
power
room
safety
shaft
ship
shipping
sound
space
sports
station
stop
submarine
technology
vessel
water
worker
working