Various investigations using different methodologies consistently indicate that cadmium (an IARC Type 1 carcinogen) transfers linearly from tobacco into smoke emissions.
采用不同方法的各类调查一致说明镉(国际癌症研究机构第1类致癌物)直接从烟草转化为烟雾。
Based on the different entrainment mechanisms, the smoke movement in a long channel can be divided into four stages.
根据卷吸机理不同，可将通道内烟气蔓延过程分为四个不同阶段。
By different functions it can be categorized into smoke damper and smoke fire damper.
按其功能可分为防火阀和排烟防火阀两大类。
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