boghead coal沼: natural pond块煤: lump coal藻: algae煤: coal藻煤: algae coal; algal coal (bog bead coal); boghead mineral; bogheadcoal; boghedite; gelosic coal; sapromyxite; thelotite; tomite; torbanite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:沼块煤；藻煤，即可在微信中查询翻译
