The water pipe set inside the smoke pipe (5) increases the heat transmission area, cooling down the exhaust temperature.

水管设在烟管（5）内增加了烟道中的传热面 积，使排出烟的温度降低；

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The water pipe (4) of the smoke pipe (5) reduces the flowing section of the smoke channel, speeds up the smoke flow, improving the heat transmission performance and efficiency.

烟管（5）中的水管（4）减小了烟道流动截面积、 加大了烟气流速，使得烟气传热性能增强、热效率高。

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Feeble steps were heard on the stairs, and an old man, tall and frail, odorous of pipe smoke.

楼梯上响起了微弱的脚步声，一个病怏怏、浑身烟臭、满嘴烟渍的高个子老头儿犹犹豫豫地走了进来。

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Dimmitt recalls "ashtrays in church pews, smoking in the classroom and blowing pipe smoke all over the students!"

CNN: If smoking is so bad for you, who still does it?

According to the National Cancer Institute and American Cancer Society, secondhand smoke is the combination of two types of smoke that is produced when burning tobacco: the smoke that comes from the burning end of a cigarette, cigar or pipe and the smoke that is exhaled by the smoker.

CNN: Study: Smoke-free laws may cut heart attack hospitalizations

That's when all eyes will turn to the 6-foot-high copper chimney erected atop the Sistine Chapel to pipe out puffs of smoke to tell the world if there's a new pope.

NPR: Conclave To Elect Next Pope Opens Amid Uncertainty