methane discharge volume瓦斯: gas; mashgas排放: discharge; blowoff; blowdown ...量: measure capacity瓦斯排放: drainingut of gases; methane drainage瓦斯排放（涌出）量: methane discharge volume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:瓦斯排放量，即可在微信中查询翻译
