Welsbach
burner韦耳斯拔煤气喷嘴
🗣️ 情景例句
Thanks, Ellen.
谢谢，Ellen。
If you compare her work with his, you'll find hers is much better.
要是把他们俩的工作比较一下，你就会发现她的好得多。
He explained that he had tried to fix the air-line to the supply line that ran round the port but could not because the fittings did not match.
他解释说他想供气管安装到铺设在码头周围的供应管上，但因为接头不相配而接不上。