排出管; ★烟囱; 【铁】炉身(When the burden materials and coke that are charged into the top of the blast furnace descend through the stack, they are preheated by the hot gases ascending from the tuyere. 当装人高炉炉顶的炉料和焦炭下降通过高炉炉身时，它们被来自风口上升的炽热煤气预热。)
⇒ head and cab stack(The main difference between a combo amp and a head and cab is that one comes with a built-in speaker. A combo amp provides a player with an amplifier and speaker all in one case. The head and cab are separate products. They need to be connected together in order to obtain the same result.
); head and cab(The main difference between a combo amp and a head and cab is that one comes with a built-in speaker. A combo amp provides a player with an amplifier and speaker all in one case. The head and cab are separate products. They need to be connected together in order to obtain the same result.
)
