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No, in this context it typically refers to the process of stepping ("backwards"/"upwards") through a stack, removing successive frames until you've come back to the desired level. Typical stacks are (of course) very linear in their structure, frames are stacked end-to-end after each other, so there's not really much literal unwinding going on, but that's what it's called.
This Wikipedia page has more detail.
与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…