accidental force meaning in Chinese

不可抗力

In this article , the author expounds the main theoretical issues on the principle of change of circumstances and puts forward to the difference between its basic implication and the frustration of contract in common law , the accidental force and the commercial risk . meanwhile , its applicable conditions and the force of law are illustrated in detail here
本文论述了情事变更原则的主要理论问题，具体提出了情事变更原则的基本含义及其与英美法合同目的落空、不可抗力以及商业风险的区别，系统阐述了情事变更原则的理论基础，详细叙述了情事变更原则的适用条件和法律效力。