契约效力 meaning in English

validity of contract

The topic of this paper is about the legal problem on the third party infringes the creditor ' s right . we should know that the research on that item is not only a supplement of the legal practice but also a deeply ponderation on the theory about the creditor ' s relatively right . with the theory of the contract for the third party ' s benefit and etc . , it raises a movement on expanding the force of contract and protecting the creditor ' s right
我们应该认识到对第三人侵害债权制度的研究决不仅仅只具有实践上拾遗补缺的作用，而是对传统民法中相对权理论和合同相对性原则的全面反思，尤其是在把第三人侵害债权作为“制度”来研究的情况下则更是如此，而且在这个反思的过程中绝不是第三人侵害债权制度在孤军作战，它和债权物权化、为第三人利益合同、债的保全等等诸多理论一起掀起了扩张契约效力和保护债权的运动。