VSS_FILE_SPEC_BACKUP_TYPE enumeration. The VSS_FILE_SPEC_BACKUP_TYPE enumeration is used by writers to indicate their support of certain backup operationsâsuch as incremental or differential backupâon the basis of file sets (a specified file or files).
Blue ice (aviation) Blue ice, in the context of aviation, is frozen sewage material that has leaked mid-flight from commercial aircraft lavatory waste systems. It is a mixture of human biowaste and liquid disinfectant that freezes at high altitude. The name comes from the blue color of the disinfectant. Airlines are not allowed to dump their waste tanks in mid-flight, and pilots have no mechanism by which to do so; however, leaks sometimes do occur.
Packed Ice as appears in 1.7.2. Packed ice is an opaque variant of ice. Packed ice is harder than regular ice and can not be seen through. Packed ice can be found naturally in rare Ice Plains (Ice Spike Biomes) using a tool enchanted with Silk Touch or through creative mode / cheats. Mining packed ice without Silk Touch will break the block. Packed Ice was added in the update to 1.7.2.