I have registered a website in Australia in english. How would I be able to make it available to be searched in lets say mandarin in google china after having it translated?
Any help would be appreciated.

I think you should get your site translated in Chinese by professionals and optimize it for baidu.

After it is translated it will already be "available" to be searched. To get it indexed by Baidu, you'll need to make sure that it is linked to from other websites that are indexed by Baidu.

Yes, backlinks from other sites indexed and title and description optimized for your keywords in mandarin.

In my own experiences, if you want your sites to rank higher on Google China, you should build enough backlinks for your sites from sources in China. If only for searching purposes, a translation of your sites would be enough. :)

Have a nice day,