例句與造句

1. The prototype first flew on 28 April 1928, powered by a Bristol Jupiter engine since a flight-ready Mercury was not yet available, and the aircraft was not delivered to Martlesham Heath for evaluation until March 1929 . The Bullpup prototype was subsequently fitted with a Jupiter F type head with twin compensator rods for the penthouse heads.
2. It's difficult to find compensator rod in a sentence. 用compensator rod造句挺難的