例句與造句

1. Pescara helicopters ( 1919 30 ) are coaxial rotors helicopters, each rotor being controlled by a swashplate ( oscillating bearing ) driven by the first control stick for helicopter ( UK 178, 452 Improvement in or relating to Joy Sticks for helicopters.
2. It's difficult to find oscillating bearing in a sentence. 用oscillating bearing造句挺難的