【运输】船舶推进器【运输】水下推进器螺杆，水下推进器

hull insurance【保险】;insurance on hull【保险】;marine hull insurance【保险】

marine medicine【医】;nautical medicine【医】;

Marine　green

Marine biology

marine growth【生物】

marine risk

dolphin (fender, marine piling, mooring post)

marine microbiology