褐煤油是从褐煤中得来的防腐油.Lignite oil is creosote derived from lignite tar.因此, 传统的煤层气含量确定方法不适用于褐煤.Therefore, the conventional gas content measurement is invalid to lignite.大雁二矿煤种为褐煤, 属易自燃发火煤层.Coal Mine, its coal seam is easily spon...
He reversed into the stockade in a cloud of dust.他在一阵尘土中将车倒进了围栏。These numerical equalities would not exist if any ordinary engine cycle were reversed.如果将任一普通热机的循环方向反向,那么以上这些相等数量是不存在的.The sample, after being purged by rev...
囊性纤维化是最常见的致命遗传疾病。Cystic fibrosis is the commonest fatal here-ditary disease.“ 我是十年宦囊,尽付东流!" Every penny of ten years'savings down the drain!胆囊疾病和胰腺囊性纤维性变也常常纠缠我.Gall - blader disease and cystic fibrosis also often in...
玛丽·安不想要孩子，至少现在不想。Mary Ann doesn't want to have children. Not right now, anyway.玛丽·安问他晚餐怎么样，他回答说：“糟透了。”Mary Ann asked him how dinner had been. "The pits," he replied.“玛丽·安还好么？”——“她很好，”她平静地说。"Is Mary Ann O.K?" — "She&...