Every content item in this list is tagged with all the required labels:

• anemometer
• clamps
• distortion
• howto
• pisa
• processing
• radiation
• radiation-shield-test
• surface
• time
• vortex2

To add a label to the list of required labels, choose '+ labelname' from Related Labels.
To remove a label from the required labels, choose '- labelname' from above.