我们的情形是在火焰内部产生气流。

In our case, air flow is generated inside the flame.

youdao

而我们的情形是在火焰内部产生气流。

In our case, we generate this flow within the flame.

youdao

所谓的低速，就是不产生气流。

Low speed mean, no draught is caused.

youdao

所谓的低速，就是不产生气流。

Low speed mean, no draught is caused.

youdao