标题: OG12 107 [打印本页] 作者: cyx1106 时间: 2011-9-29 10:45 标题: OG12 107 Originally developed for detecting air pullutants, a technique called proton-included X-ray emission,which can quickly analyze the chemical elements in almost any substance without destroying it, is finding uses in medicine,archaeology,and criminology。
这句话是正确的一句 解释说WHICH指代地很正确
A technique originally developed for detecting air pollutants, called proton-induced X-ray emission, which can quickly analyze the chemical elements in almost any substance without destorying it