1.Smoke chemistry

Oneextensivestudyoftheeffectoffilterventilationonsmokecomponentdeliverieshasbeenpublished.Thetipsusedrangedinlevelofventilationfrom20%to70%.Itwasshownthatthelevelofventilationremainedessentiallyconstantthroughthesmokingofthecigarettes.Thisfindingcanbeexpl ......      (共8623字)     [阅读本文]>>



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