1.Beijing has established numerous high-tech industrial parks and incubators aimed at promoting technologies.

这里的分词短语aim at是做定语吗？我最开始认为的是high-tech industrial parks and incubators也可以发出aimed at这个动作，此处aimed at的作用就相当于谓语动词了。

2.And China is home to one of the world's largest research communities,now enriched by high-quality domestic university programs,as well as scientists returning from abroad with advanced degrees from the world's leading universities.

前面的分词enriched做状语，逻辑主语为China；后面的returning from做scientists的定语，但这里的scientists returning from abroad...可以看做独立主格结构的形式吗？

以上判断，还麻烦老师指点一下