求翻译：在作业中发生回火，千万不能将焊炬、割炬一摔了事，而应该先关闭焊炬、割炬上的乙炔阀，在关闭焊炬、割炬上的氧气阀，待火焰熄灭后，稍停一下再打开氧气阀将管内残余的余焰和碳性微粒吹出，并在焊把恢复正常后在使用。是什么意思？

Tempering occurs in the job, do not be welding torch, cutting torch Yishuai trouble, but should be shut down welding torch, cutting torch acetylene valve on the torch off, the oxygen valve on cutting torch, until the flame goes out , stop for the moment and then open the oxygen valve remnants inside

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Has the tempering in the work, as soon as cannot the welding blowpipe, the cutting torch fall settles, but should close on the welding blowpipe, the cutting torch acetylene valve first, on the closure welding blowpipe, the cutting torch oxygen air valve, after treats the flame extinguishment, stops

In job in the occurred tempered, must cannot will welding torch, and cut torch a fell something, and should first close welding torch, and cut torch Shang of acetylene valve, in close welding torch, and cut torch Shang of oxygen valve, to flame is off Hou, slightly stopped about then open oxygen val

Tempering occurs in the job, do not be welding torch, cutting torch Yishuai trouble, but should be shut down welding torch, cutting torch acetylene valve on the torch off, the oxygen valve on cutting torch, until the flame goes out , stop for the moment and then open the oxygen valve remnants inside