用各种稀的无机酸来萃取阴离子.A variety of dilute mineral acids are used to extract the anions.它对氟离子的选择性比其它普通阴离子高几千倍.It'shows a thousandfold selectivity for fluoride over other common anions.通常, 钙素过量是与该元素相联系的阴离子伴随产生的.In general, e...
暴徒用一堆堆燃烧的轮胎在大街上筑起了路障。The rioters barricaded streets with piles of blazing tyres.汽车在时速为200英里时发生撞车，炸成了数以千计燃烧的碎片。The car shattered into a thousand burning pieces in a 200mph crash.燃烧的金属的味道刺激着他的嗅觉。The scent of burning metal ...