amount of coal formed gassamount of coal-derived gas煤: coal成: accomplish; succeed气量: tolerance煤成气: coal-derived gas; coal-formed gas生成气量: gas generating amount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:煤成气量，即可在微信中查询翻译
