top - combustion的用法和樣例：
例句
- Life should be like a candle, burning from the top to the end, lighting all along.
人生應該像蠟燭一樣，從頂燃到底，一直都是光明的。 - The structure characteristic of top combustion and double-preheating igniter ,and its operation effect were presented in this paper.
介紹了頂燃雙預熱高爐煤氣點(diǎn)火爐的結構特點(diǎn)及生產(chǎn)情況。
