smoke density factor烟雾: smog; smoke fog; smoke; mist ...密度: density; thickness因数: factor; coefficient雾密度: fog density超灰雾密度: density sbove fog下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:烟雾密度因数，即可在微信中查询翻译
