例句與造句

1. The team used 600 separate sonar beams and satellite navigation technology to trawl the loch, but found no trace of any monster, the BBC said in a television program broadcast Sunday.
2. The bulging forehead of the dolphin houses a pad of fat called the melon, which is thought to help focus the high-frequency sonar beams with which dolphins navigate and find their food, according to The Macmillan Illustrated Animal Encyclopedia.
3. In 1991, they won a major court victory against a paper mill that had been polluting California's Humboldt Bay, and they helped stop government plans to send a giant sonar beam across the ocean that might have disturbed sea mammals.
4. It's difficult to find sonar beam in a sentence. 用sonar beam造句挺難的