surface swimmer造句

• Since they are surface swimmers, " S . marina " are also preyed upon by some birds.
• The Coast Guard also trains a very basic form of life saving swimmers known as Cutter Surface Swimmers.
• I soon found out that an old Smithwick Devil's Horse, a classic surface swimmer with propellers mounted fore and aft, was effective, but it, designed for fresh water fishing, couldn't take the punishment.
• After graduation he ran three seasons for Asics Shoes and four seasons Saucony Shoes before enlisting in the United States Coast Guard at age 29 and served four years as a surface swimmer and Federal Boarding Officer on the Great Lakes.
• Experience has showed that passive sonar ( i . e . merely listening for underwater sounds ) cannot detect everything; in particular it cannot easily detect rebreather divers and unequipped surface swimmers; and it can detect direction, but not distance unless readings from two or more listening stations can be correlated.