With that, the teacher put the key in my hand, I found that the teacher's hand how so hot, like a small furnace.
说完后，老师把钥匙递到了我的手里，我发现老师的手怎么那么热，像个小火炉一样。
2
On the one hand, this should suppress scale pick-up on the tunnel furnace rollers which may lead to so-called depressions on the slab bottom side.
一方面，这将抑制隧道炉辊上产生绣渍，而锈渍有可能导致板坯底部一面的凹陷；
3
On the other hand, because of the fluctuating load, such as arc furnace and railway traction locomotive, the voltage of the network will frequently fluctuate and lead to voltage flash.