伯罗奔尼撒战争以雅典同盟的毁灭而收尾 ( 亚历山大汉密尔顿 )The Peloponnesian war. terminated in the ruin of the Athenian commonwealth ( Alexander Hamilton )地区贸易同盟的数目在过去十年激增.Regional trade blocs have emerged in the past decade.与此同时,有关欧洲政治同盟的辩论仍在继续.A...
在浓缩过程中大部份氟蒸出.A large proportion of the fluorine is vaporized during the concentration process.因此, 大多数液浮陀螺充以氟碳化合物.For this reason, most floated gyros are filled with the fluorocarbons.它对氟离子的选择性比其它普通阴离子高几千倍.It'shows a...