只要火焰在燃烧。

As long as the fires are burning.

youdao

因此，要保持氢气的火焰在燃烧喷嘴连接到一个氢发生器的速度必须降低。

Therefore, to sustain a flame at a nozzle attached to a hydrogen generator the burning velocity of the hydrogen gas must be reduced.

youdao

到了秋天，爸爸常常带我们全家去赏枫，在石门水库的大坝下，可以看到一排排的枫树，远远望过去，就好像是红红的火焰在燃烧。

In the fall, my father often take our whole family to enjoy maple, under the shimen reservoir dam, can see rows and rows of maples, well, it's like red flame in the combustion.

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