| 摘要 |
The cigarette smoke is conveyed through 3 chambers at different speeds and air pressures. In the first chamber (1) the smoke is very much accelerated through a sieve with cross-sectional constrictions, and produces higher pressure. The jets of smoke rebound on the chamber walls. Chambers (1,2) are separated by the floor, and joined by an opening. Chamber is empty and subject to vacuum. The sticky tar-drops fall to the floor and are sucked up by the third chamber (3).
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