as的倒装使用方法

Today acupuncture has become popular round the world,ashave other traditional Chinese medicines.

这个句子中划线处为倒装结构，请问这是什么使用方法？as 在这里是什么成分？何解？

在较文的文体中，有时在 as 可用倒装（跟 so 的使用方法相同）。如：

She’s very tall, as is her mother. 她个子非常高，她妈妈也高。

I voted Labour, as did my wife.我投了工党的票，我老婆也是。

She was very religious, as were most of her friends. 她宗教信仰非常深。她的绝大部分朋友也是如此。

你的句子就是这样的情况：

Today acupuncture has become popular round the world, as have other traditional Chinese medicines. 现在，针刺疗法在世界各地非常受青睐，其他的传统中医疗法也是一样。