fuel-lean flame贫: poor; impoverished焰: flame; blaze贫氧层: oxygen poor layer贫烟煤: hard ash coal贫氧的: oxygen-deficient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:贫焰，即可在微信中查询翻译
