Then turn on the stove gas source switch. After the stove is lit up, turn off vent-pipe valve.

再打开灶头气源开关，灶头点燃后关闭排气管阀门。

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Then turn on the stove gas source switch. After the stove is lit up, turn off vent-pipe valve.

再打开灶头气源开关，灶头点燃后关闭排气管阀门。

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