Today I found a technological bolg 王大佬 and saw a useful method on how to enable Google Chrome browser to multi-threaded download. Here is the website: Google Chrome 浏览器开启多线程下载方法.

Step 1: Open the following site in your Google Chrome browser:

chrome://flags/#enable-parallel-downloading

Step 2: Find Parallel downloading (CTRL + F to search), click Enabled to start!