chim·ney stack
noun/ˈtʃɪmni stæk/
/ˈtʃɪmni stæk/
(British English)- the part of the chimney that is above the roof of a building
（屋顶上的）烟囱体 - (North American English smokestack)a very tall chimney, especially one in a factory
（尤指工厂的）高烟囱