这些效率的定义不完全等价。

These definitions of efficiency are not exactly equivalent.

youdao

本文提出的基于等价类法的形式背景同构判定算法，有效地提高了同构判定的效率。

This paper suggests an isomorphism detecting algorithm based on equivalent class, which improves the efficiency of context isomorphism detection.

youdao

这种直接计算迭代器的方法，与用迭代器逐个元素自增操作到达中间元素的方法是等价的，但前者的效率要高得多。

It is more efficient to calculate this iterator directly than to write an equivalent program that increments the iterator one by one until it reaches the middle element.

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