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...
I told him I wasn't interested, but he wasn't deterred.我已告诉他我不感兴趣，可他却不罢休。Such observation have deterred most prudent investigators from attempting direct contact - angle measurements.这个研究成果对企图采用直接测量方法测量接触角的研究人员...