equivalence of ideals in narrower sense

例句：

1. 1. The two countries haveequivalence in terms of trade.
   这两个国家在贸易方面是等价的。
2. 2.The equivalence of the twosides is crucial to the peace process.
   双方的等价关系对和平进程至关重要。
3. 3.The equivalence of their interestsmakes it difficult for them to reach anagreement.
   他们利益的等价使得达成协议变得困难。