这句如何断句?最好简单做一下语法分析.Thanks~Six years of relatively sparse data from a fledgling network of Global Positioning System GPSdeformation monitors ,that had been developed and installed around Southern California by scienti

这句如何断句?最好简单做一下语法分析.Thanks~Six years of relatively sparse data from a fledgling network of Global Positioning System GPSdeformation monitors ,that had been developed and installed around Southern California by scienti
这句如何断句?最好简单做一下语法分析.Thanks~
Six years of relatively sparse data from a fledgling network of Global Positioning System GPSdeformation monitors ,that had been developed and installed around Southern California by scientists at JPL and other organizations ,had detected that Earth s crust was being squeezed closed across the Ventura Basin.

这句如何断句?最好简单做一下语法分析.Thanks~Six years of relatively sparse data from a fledgling network of Global Positioning System GPSdeformation monitors ,that had been developed and installed around Southern California by scienti
Six years of relatively sparse data from a fledgling network of Global Positioning System ( GPS) deformation monitors ,which had been developed and installed around Southern California by scientists at JPL and other organizations ,had detected that Earth s crust was being squeezed closed across the Ventura Basin.
这个句子确实“蛮搞的”.GPS应该在括号中,非限制性定语从句最好用which引导.也许是限制性的,但句子太长,用了逗号吧.
先大概分一下：
句子的主语是第一个逗号前的这一部分.逗号之间的是定语从句,最后面的是谓语部分.
其中的主语是six years of relatively sparse data,其中心词就是data,six years of 和relatively sparce都是它的修饰语.from a fledgling network of GPS deformation monitors 是介词短语作后置定语,表示data的来源.
非限制性定语从句是补充信息,不是很重要,先分析谓语部分:
had detected --谓语.
that-从句--宾语（从句）
宾语从句Earth's crust was being squeezed closed across the Ventura Basin.分析：
主语：Earth's crust
谓语：was being squeezed 被动语态,过去进行时态.
主语补足语：closed
地点状语：across the Ventura Basin
非限制性定语从句分析:which had been developed and installed around Southern California by scientists at JPL and other organizations
主语:关系代词which指代先行词：deformation monitors
谓语：had been developed and installed 被动语态,过去完成时态
地点状语：around around Southern California
状语,表示被动作动的执行者：by scientists at JPL and other organizations
全句翻译：
Six years of relatively sparse data from a fledgling network of Global Positioning System ( GPS) deformation monitors ,which had been developed and installed around Southern California by scientists at JPL and other organizations ,had detected that Earth s crust was being squeezed closed across the Ventura Basin.
在南加利福尼亚周围,JPL和其他机构的科学家研发并安装了GPS地形变化监控仪,由这些监控仪所组成的网络尽管没什么经验,提供的六年的数据相对而言稀稀落落,业已检测出温图瑞盆地的地壳正受到挤压.