1. First log in to official website, China Medical Network, and register the login account.

2. In the search field on the homepage of the website, enter "Safety Training in Biological Laboratory" and click the search button.

3. Read the relevant exam instructions and requirements to confirm that you meet the conditions and requirements for taking the exam.

4. Click the "Register for Examination" button, fill in personal information and contact information, and pay the examination fee as required.

5. After confirming that the registration information is accurate, enter the examination interface and complete the examination according to the examination regulations.

A laboratory refers to an institution that creates specific conditions for clarifying a phenomenon in science so as to observe its changes and results.