可以。因为这个非限制性定语从句比较长。
这句话建议分成两个句子来写。如果非要用非限制性定语从句,那么which引导的从句最好放在被修饰的先行词Zhujiang River之后。 Flowing through Guangzhou, Zhujiang River is a river system in southern part of china. It is the third longest river in China and only shorter than Yangtze River and Yellow River.