There are quadruplication of this Contract with same legal effect.
本合同一式四份，甲、乙双方各执二份，具有同等法律效力。
The appendices of the Agreement have the same legal effect as the Agreement.
本合同的附件与本合同具有同等的法律效力。
This Agreement in duplicate, the two sides a Gezhi, have the same legal effect.
本协议一式两份，双方各执一份，具有同等法律效力。
The power of attorney is incorporated into this contract and has the same legal effect.
该授权文件构成本合同的一部分。
There are two copies of this contract with each party holding one and both have the same legal effect.
本合同一式两份，双方各执一份，具有同等法律效力。
However, in the view of legal effect of the international custom, the international practice is on the same level as the international custom.
然而，从国际习惯的效力来看，国际惯例和国际习惯的地位是同等的；从国际习惯的分类上，也并没有将两者严格区分。
However, in the view of legal effect of the international custom, the international practice is on the same level as the international custom.
然而，从国际习惯的效力来看，国际惯例和国际习惯的地位是同等的；从国际习惯的分类上，也并没有将两者严格区分。
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