例句與造句

1. In 1925, Reuben Trane invented a new type of heat transfer device known as the convector radiator.
2. Reuben conceived the idea of the first convector radiator in 1925 which replaced the heavy, bulky, cast-iron radiators that prevailed at the time.
3. It's difficult to find convector radiator in a sentence. 用convector radiator造句挺難的