The first part of the expression contains the namespace declarations (in this case, UBL 2.0 Invoice) and some auxiliary namespaces; these are used to ensure uniqueness of all element names used.

表达式的第一部分包含名称空间声明(在这里是UBL 2.0 Invoice)和一些辅助名称空间；这些名称空间用于确保使用的所有元素名的惟一性。

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Compared with the 90 s, hand-painted as main means of expression of a project design, now most of my hand-painted is just used for auxiliary express of the design thinking process.

手绘，对比于90年代作为项目设计主要的表达手段，如今我大部分的手绘只是用来辅助表达设计思考过程而已。

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Intervening IAP expression or function in tumor cells has already been studied as an auxiliary therapy of traditional tumor treatment.

干涉IAP分子在肿瘤细胞内的表达或功能已被作为肿瘤传统治疗方法的辅助治疗方法来研究。

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