关于伴随状语结构的一个小问题----急！！！

fgh67743185

The Anasazi settlements at Chaco Canyon were built on a spectacular scale, with more than 75 carefully engineered structures, of up to 600 rooms each, were connected by a complex regional system of roads.

正确答案-scale, with more than 75 carefully engineered structures, of up to 600 rooms each,


我选的答案-scale of more than 75 carefully engineered structures of up to 600 rooms, each had been


对于答案我没有异议，我只是想知道如我选的答案中，把with引导的同位语和之后of介词短语的逗号去掉后在语法上有什么错误？比如：


Sth1 is Sth2 of介短 of介短. 与  Sth1 is Sth2, of介短, of介短. 的区别？两个介词短语的指代有什么变化？


还有就是had been可以做过去分词么？？


等待NN回答！！！！！

fgh67743185

是我没有说清楚吗？怎么没人回答我阿，，，，，，，，

powers

我总结的关于scale的，这里不能加of

朗文：

Scale of：we had underestimate thescale of the problem

A structural survey revealed the full scale of the damage.

I was shocked by thesheer scale (= very big scale )  ofthe destruction.

On a large/small/grand/spectacular/… scale:

There has been housing development on a massive scale since 1980.

Most alternative technologies work best on a small scale.

the       scale     + of        + the 某事    ：某事的程度

the  full（等表程度的adj）scale + of      + the 某事     ：某事的这样深/浅/大/小的程度

on a small（等表程度的adj）scale of                          ：在什么样程度

tintinc

这道题我也很困惑，但我觉得不是scale的介词搭配问题，而是后面分词结构修饰scale的含义是什么。
OG上对不能用of more than 75 carefully engineered structures的解释是it suggests that the scale is made up of structures, rather than uses(汗，这里为什么用了uses而不是use？) the structures as an example of the settlements' grand scale
但是of不是也有将整个短语形容词的化的用法吗？用在这里单纯地修饰这个scale大到75个多的structures不可以吗？