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- collapsed object
- collapsed star
- collapse fraction
- collapse of lung
- collapse of quantum state
- collapse of shell
- collapse of the Soviet Socialist newspaper system
- collapse of vapor bubble
- collapse of wave function
- collapse simulation
- collapses-revivals
- collapse structure
- collapse time
- collapse trace
- collapse vibration
- collapsibility
- collapsibility test
- collapsible loess
- collapsible loess treatment
- collapsible space
- collapsing
- collapsing cloud
- collapsing function
- collapsing in situ
- collapsing instability