The court of justice as a study object is a social public authority of "legality" that undertakes a fundamental duty of settling disputes in the status and position of a third party.

作为研究对象的法院应当是肩负着以第三者身份与地位来解决纠纷的根本职责，并具有“合法性”的社会公共权威组织。

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The object of claim for extension of time is to extend the construction time, to avoid the penalty for delay, and then provide the contract foundation for legality of financial claim.

工期索赔的目的首先是延长工期，避免遭受工期延误罚款；其次是给经济索赔的合法性奠定合同基础。

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