Ubuntu clears networking records.

Ubuntu can clear network records in the following ways:

1. Click the system settings box (specifically, you can open the second option under dash, and then click Settings in Installed Software (that is, let dash display all installed software). Some have this box in the sidebar).

2. Click Privacy Options.

3. Close the button in the lower right corner of the box.

4. Click the recent entry option and click "Delete History".

Hello! I also want to know the detailed cost analysis of laser cutting, the finer the better, such as the consumption and cost of laser gas per hour!

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