In terms of cancer, a far more significant type of indoor air pollution is second-hand cigarette smoke.
对于癌症，更明显的室内污染源是二手烟。
The captured sulfur agent added into clean coal is very important based on the situation in, China such as coal as the main energy, coal users dispersion and coal smoke pollution type.
在中国以煤为主要燃料，燃煤用户分散，大气环境呈典型的煤烟型污染的条件下，添加固硫剂的洁净煤对大气环境污染的治理具有十分重要的作用。
Coal-smoke air pollution is the main type of air pollution in China.
煤烟型大气污染是中国大气污染的主要类型。
The processing technology can cancel the open transportation of the smoke dust, adopt sealed type transportation, save labor, and put an end to material loss and environmental pollution.
它可取消烟尘的开路运输，采用密封式运输，节省劳动力，杜绝物料流失和环境污染。
The processing technology can cancel the open transportation of the smoke dust, adopt sealed type transportation, save labor, and put an end to material loss and environmental pollution.
它可取消烟尘的开路运输，采用密封式运输，节省劳动力，杜绝物料流失和环境污染。
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