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adj.有先例的；优先的
1、However, a more important factor to consider when deciding whether to appeal may be the precedential value of the case.───但是，决定是否上诉的一个更重要的因素也许是案件的判例价值。
2、Not all cases are published, however, and there is considerable debate in many jurisdictions about the precedential value of unpublished decisions.───不是所有的案例会出版，然而，关于未出版的判例的先例性价值在诸多管辖地有着大量的争论。
1、Decisions by courts do not establish legal precedents, but important decisions by the SPC are highlighted in official guidance and have precedential effects.
2、Likewise, in the federal system, a Fifth Circuit Court of Appeals decision would not have any precedential effect on another circuit court appeal.
3、If the Supreme Court refuses to hear a case, such refusal has no precedential effect.