例句與造句

1. Scientists at Mitsubishi Heavy Industries who are trying to build nimbler ships and submarines by developing oscillating fins have come up with a lifelike invention : a robot fish.
2. Terada and other researchers concluded in 1995 that fitting ships and submarines with oscillating fins rather than the usual thrusters would improve control, avoid dangerous rolling and enable vehicles like submersibles to hover better.
3. It's difficult to find oscillating fin in a sentence. 用oscillating fin造句挺難的