frustration and clausula rebus sic stantibus are both important doctrines existing separately in the contract laws of civil law countries and common law countries.

1、

after that, discuss the difference between rebus sic stantibus and commerce risk, the doctrine of force majeure and display loss fairness.

随后指出情势变更与商业风险、不可抗力及显失公平的区别。接下来概括了情势变更原则的适用条件与效力。

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2、

fifthly, i detail the specific requirements for the system of changed circumstances in our country from substantive law and procedural law.

第五，笔者从实体法和程序法方面叙述了完善情势变更制度的具体内容。

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3、

the second chapter tries to show the condition and the results about using the principle of change of circumstances in judicial practice.

因为情势变更原则在审判中操作难度大，在第二章着重论述了情势变更原则在审判实践中的适用条件和适用效力。

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4、

the fourth section mainly introduced why has to accept the instruction change principle in our country in the contract law.

第四节主要介绍了在我国为什么要在合同法中采纳情势变更原则。

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5、

in aspect of the standard of application, author applies cost method of economic analysis and ordinary people standard.

在情势变更制度的适用标准方面，适用经济成本分析法以及把握住一般人的标准。

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6、

the changed circumstances is an important content of the contract debt system for the modern civil law.

情势变更原则是现代民法合同债权制度中的重要内容。

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7、

on the circumstances change principle

再析情势变更原则

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8、

part iii: comparison of the systems that are related the principle of change of circumstances.

第三部分，情势变更原则相关制度比较分析。

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9、

introducing the principle of situation change to deal with the disputes caused by land contract transfer

引入情势变更原则处理好转包土地的纠纷问题

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10、

in the judicial practice, some civil disputes refer to the system of changed circumstances.

在司法实践中，总有一些民事纠纷涉及到情势变更制度。

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11、

study on the principle of change circumstances

情势变更制度研究

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12、

the second chapter, the author analyzes the necessity and feasibility of changed circumstances.

第二章，在这一章节中，具体分析了情势变更原则在商品房预售合同中适用的必要性和可行性。

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13、

the third one is the difference between circumstance change and relevant concepts or systems.

三是注意情势变更与相关概念或制度的区别。

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14、

study on the application of the circumstances change principle in real estate contract disputes

浅议建筑房地产合同纠纷中情势变更原则的适用

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15、

influence of the principle of rebus sic stantibus on the effectiveness of contracts

论情势变更原则对合同效力的影响

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16、

research on the principles of the change of circumstances

论情势变更原则&比较法视野中的情势变更原则

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17、

produce and history of the principle of changed circumstances

合同的情势变更原则的产生及演变

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18、

practice of situation alteration principle in apartment forward selling

试论情势变更原则在商品房预售中的具体适用

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19、

the use of the regulation of situation's changing in legal practice

浅谈情势变更制度在司法实践中的运用

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20、

perfecting and transcending of the principle of rebus sic stantibus

情势变更原则的理论超越与完善

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