The oceanic crust thus serves as a magnetic tape recording of the history of the geomagnetic field that can be dated independently the width of the stripes indicates the rate of the sea - floor spreading。0 n# a0 ~: A- e; k7 U
麻烦哪位高人能帮忙翻译一下这个句子，是老托，9305的passage 5最后一个句子~实在翻译不明白，谢啦！

因为没有背景，所以就直译了：! |+ t7 K9 x- X9 t7 u" Y; r. B
海底层因此就像是一个录音带，记录了能够被独立追溯时间的地磁场的历史，带子的宽度指示了陆地海洋扩张的速度。$ J1 N8 q7 \* Q; H# Z9 t: G( a0 A& Z
+ I& V/ _* @, C1 e3 y( Q, _& l: }9 y5 I
在下不才，就译成了这个样子，如果感觉别扭的话我在找别人给你翻译一下。

谢谢 5 n! N" B/ M: R5 B* u+ L
还有一个问题，the width of the stripes indicates the rate of the sea - floor spreading在句子里作什么成分？修饰哪个词？

The oceanic crust thus serves as a magnetic tape (recording of the history of the geomagnetic field后置定语) （that can be dated independently the width of the stripes indicates the rate of the sea - floor spreading）-->定语从句修饰history
  A9 ?, a, a8 n$ c- s* b
& s; H# ^) |4 P4 s# ^: Z[ 本帖最后由 doyouknow 于 2008-4-2 19:26 编辑 ]

...that the width of the stripes can date the history of g f  indicates the rate of the sea - floor spreading...
) y/ X7 ?/ l) u7 |明白了吧~~

还是dodo人最好，乐于助人！

恩恩！谢谢dodo还有pp