Fuelwood is becoming too expensive to buy and too scarce to gather.薪材日益昂贵和稀缺,既买不起又拣不到.Fuelwood forest is an important kind of plantation. It is closely linked with people's living.人工薪炭林是当前人工林建设中的重要林种, 它与人民生活息息相关.Wit...
Finally , the paper introduces the gravity satellites of CHAMP, GRACE and GOCE.文章对CHAMP 、 GRACE和GOCE重力 卫星作了介绍.Combining satellites, missiles and long - range bombers provided stand - off precision fires.联合使用卫星, 导弹,远程轰炸机提...
我估计是氢氰酸, 因为她好象是立刻断气的.I should fancy it was prussic acid , as she seems to have died instantaneously.以二异丁烯和氢氰酸为主要原料,高收率地制备叔辛胺.Tert - octylamine was prepared with di - isobutene and hydrocyanic acid as mine feed. The yield...
The Red Sox lost the pennant to Detroit by a single game.红袜队以一场之差将冠军输给了底特律队。Sulfur oxides ( SOX. ) are acrid, corrosive, poisonous gases produced when fuel containing sulfur is burned.硫氧化物 ( SOX ) 是辛辣的腐蚀性的有毒气体,产生于含硫燃料的燃烧...