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If we use some CAD blocks while creating CAD drawings with the Haochen CAD software, and we want to know the number of these CAD blocks, we can use the relevant functions in the CAD software to count them. If the number obtained through this method differs from the one counted manually, it may be due to overlapping blocks. So how can we eliminate these overlapping parts? Let me give you a detailed introduction below! Methods to eliminate overlaps when counting CAD blocks: 1. Enter the command OverKill in the command line and press Enter; the command line will prompt “Select objects”, as shown in the figure below: 2. Select the area containing the duplicate objects that need to be removed ； As shown in the figure below: 3. After selecting the desired object, press Enter to confirm; a “Delete Duplicate Objects” dialog box will appear. Keep the default parameters and click OK, as shown in the figure below. 4. Now, look at the area where overlapping blocks used to exist – the duplicate objects have been deleted (there are no overlaps anymore; each block is visible as a single block), as shown in the figure below. By following these steps to remove the overlapping blocks, the count of seedlings obtained will no longer differ from the count obtained by counting manually. The above is what you can refer to in the Haochen CAD drawing software: when a single CAD block is reused multiple times in a CAD drawing and those blocks overlap, this CAD tutorial can be used to eliminate such overlaps.