1.把胶管和天然气开关连接在一起.
2.把本生灯放在防热的垫子上.
3.转动套环,关闭气孔.
4.把打火器的管头放在本生灯的排气孔上,然后打火,转动天然气开关.
5.慢慢打开气孔调节火的大小.
6.使用完毕,关闭天然气开关.
英语翻译1.Connect the rubber tubing to the gas tap2.Put the Buns
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