他离开的时候忘记关掉气焊焊炬了。

He forgot to turn off the gas torch when he left.

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购买一台新丁烷焊炬是一个挑战。

Buying a new butane soldering torch was a challenge.

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此外，在紧急情况下可将焊炬上的乙炔胶管拔下来。

In addition, in case of emergency can be acetylene torch on the pull down hose.

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此外，在紧急情况下可将焊炬上的乙炔胶管拔下来。

In addition, in case of emergency can be acetylene torch on the pull down hose.

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