It is the main component of soot on the body's respiratory system is extremely harmful.
它是油烟的主要成分，对人体的呼吸系统极为有害。
Besides, the biomass burning when harmful gas component content is extremely low, less emissions of harmful gases, which has environmental benefits.
除此之外，生物质颗粒燃烧时有害气体成分含量极低，排放的有害气体少，具有环保效益。
Besides, the biomass burning when harmful gas component content is extremely low, less emissions of harmful gases, which has environmental benefits.
除此之外，生物质颗粒燃烧时有害气体成分含量极低，排放的有害气体少，具有环保效益。
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