非特定物 meaning in English

indefinitething

However , not a principle is ideal and every principle has the benefits and defections , which were illustrated in the essay , and so my aim is just to find a suitable one for our country . except that i also have made some research on the special problems in this field , for example , how to allocate the risk when one of the party breach of the contract and when the goods are uncertain , ect
因此，在本篇文章当中着重对以上几种风险负担原则进行了利弊分析，同时，将风险负担问题中所产生的各种特殊问题进行了一番研究，例如，买卖合同中一方违约时的风险负担，非特定物的风险负担等等一系列风险负担的特殊问题，并对各种问题提出了解决的方法。