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Figure 1 shows the idea behind pessimistic locking.
图1展示了悲观锁定背后的思想。
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Figure 1 illustrates the functioning of pessimistic locking.
图1阐释了悲观锁定的功效。
Pessimistic locking, where a record is locked while it is edited.
悲观的锁定，在编辑记录时将其锁定。
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