propeller emergence
常见例句
- Ship propeller emergence of the ship propulsion technology a major step forward, but also on the boat force a major reform, it is actually the original form of the ship.
槳輪船的出現，是船舶推進技術的一個重大進步，也是對船行動力的一次重大改革，它其實就是原始形態的輪船。 返回 propeller emergence