英语翻译1.Connect the rubber tubing to the gas tap2.Put the Buns

英语翻译
1.Connect the rubber tubing to the gas tap
2.Put the Bunsen burner on a heat-proof mat
3.Turn the collar to close the air hole.
4.Put the tip pf the gas lighter over the chimney.Then press to ignite the gas lighter and turn on the gas tap.
5.Open the air hole slowly to adjust the flame.
6.Turn off the gas tap after use.
hmf841122 1年前 已收到1个回答 举报

baobeidou 幼苗

共回答了15个问题采纳率:86.7% 举报

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.

1年前

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