coarse coalcorase coal粗: wide; thick煤: coal粗煤气: crude gas; raw gas粗煤油: untreated kerosene粗煤粒回送: coarse-particle return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:粗煤,即可在微信中查询翻译