英文關鍵字
anchor
arctic
baltic
big
board
boat
bottom
built
cable
carrying
construction
crane
dark
deck
equipment
expedition
factory
hang
heavy
high
hoist
industrial
industry
iron
job
large
lift
lifting
load
loading
mechanical
metal
move
ocean
pipelayer
pipeline
sea
ship
strong
structure
technology
transport
transportation
tug
vessel
water
weight
work
working