例如，计算机可以测试文本等价物对图像是否可用，但不能测试文本的质量或者甚至确定文本是否是无意义补白。
For example, a machine can test whether a text equivalent is available for an image, but it cannot test the quality of the text or even determine whether the text is meaningless filler.
应用软件质量的影响，通常与其适用性、逆向及停机相等价。
The impact of application software quality has often been equated with availability and its dreaded converse, downtime.
服务质量等价于顾客满意度。
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