sewer gas
(photography) A lens having a long focal length which produces a magnified view of distant objects.
A rustic custom or characteristic.
plural of mote
A mixture of toxic and non-toxic gases produced and collected in sewage systems by the decomposition of organic household or industrial wastes.
ひびの入った配管から、下水道で有機物が分解して発生・蓄積する有毒および無毒のガスの混合物が地下室に漏れ出し、住人に頭痛や吐き気を引き起こしました。
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