methanen.甲烷；沼气methane accreting甲烷增生作用methane explosion瓦斯爆炸Methanesulphonate安乃近, 诺瓦经, 罗瓦尔精, 安替比林甲胺甲烷[解热镇痛药]methane refomfing甲烷重整methane transducer甲烷传感器methane mitigation甲烷细菌methane liberation沼气放出methane activation甲烷活化methane extraction瓦斯抽采methane production甲烷产生,甲烷形成