The benzene homogeneous and overall volatility organic substance(TVOC) in the indoor atmosphere, are the major factor causing on indoor atmosphere pollution.
室内苯系物和总挥发性有机物（TVOC）是造成室内空气污染的主要原因之一。
The benzene homogeneous and overall volatility organic substance(TVOC) in the indoor atmosphere, are the major factor causing on indoor atmosphere pollution.
室内苯系物和总挥发性有机物（TVOC）是造成室内空气污染的主要原因之一。
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