Our example USES a common variation of 2pc called presumed abort, where the default behavior in the absence of a successful outcome is to rollback or undo all actions in the activity.

本文实例使用了2pc的一个常见的变体presumed abort，在该变体中，当成功的结果不在时默认的行为是回滚或撤销活动中的所有动作。

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Contrary to common variation type in Angiosperms, the variation from high unsymmetric karyotype to low unsymmetric karyotype was found in existence in Gymnosperm.

与一般植物染色体的常见变异形式相反，在裸子植物中存在从高不对称性到低不对称的变异形式。

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Additionally, this architecture provides a modular launch vehicle that can be configured for specific mission needs using a variation of common elements.

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This PIN-pad scheme is in some ways just a variation on fairly common ATM skimming hardware techniques, which attach to the machines and invisibly siphon off credit card data.

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