Question

麻烦大家从语法结构上 给我详细地分析一个长难句，谢谢啦。这句话中的几个定语从句，他们是怎么回事？

Prices are also the means by which products and services that are in limited supply are rationed among buyers.

Answer 1

Prices are also the means [by which products and services (that are in limited supply) are rationed] among buyers。
这个句子不难分析的，
先抽主干：Prices are also the means among buyers。
[]这里面的是状语从句，确切的说是由by引导的方式状语从句：by which products and services are rationed。
（）这里面的是定语从句：that are in limited supply 整体修饰products and services
这样的话，本句就一个定语从句，一个状语从句~

这个句子还不算太复杂的，应该能明白了吧~~呵呵~不清楚可以再问我~O(∩_∩)O~

Answer 2

价格是一种手段，(by which做means的定语从句）通过这种手段，(that are in limited supply作products and services的定语从句）被限量供应的产品和服务在消费者中被分配