GMAT阅读--长难句求解--OGp406

dingxiaodanger

看了好久都看不懂，求高手划分句子结构~~~~本句出自OG13

This theory is  contrary to the widely held view that the systems were deposited from metamorphic fluids， that is， from fluids that formed during the dehydration of wet sedimentary rocks. he recently developed theory has considerable practical importance.

However， none of these high- technology methods are of any value if the sites to which they are applied have never mineralized， and to maximize the chances of discovery the explorer must therefore pay particular attention to selecting the ground formations most  likely to be mineralized.

olivia瓜瓜

我把名词修饰语揪出来后LZ再读一遍，斜体是被修饰对象，水印的是修饰语。划横线的是两个from。第二个from前面有省略the systems were deposited。
希望有帮助。

This theory is  contrary to the widely held view （that the systems were deposited from metamorphic fluids，） that is， from fluids （that formed during the dehydration of wet sedimentary rocks）. he recently developed theory has considerable practical importance. 这里应该是the 而不是he把

However， none of these high- technology methods are of any value  ，if the sites（ to which they are applied） have never mineralized， and to maximize the chances of discovery ，the explorer must therefore pay particular attention to selecting the ground formations （most  likely to be mineralized.）