Equivalence partitioning of input data is required to identify the sets of input data that provide an equivalent behavior of the AUT (application under test).

我们需要使用等值划分来区别输入的数据，它可以提供一个AUT(被测试的应用程序)的等价行为。

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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.

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。

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Then, in subsequent test runs, a human tester will not need to look at the text equivalent again unless the image or the text has changed since the last test run.

然后，在后继的测试运行中，测试人员将不需要再观察文本等价物了，除非从最近一次测试运行开始图像或文本改变了。

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She said she was supportive of the field tests, because she felt it would help New York make the case that the new test would be equivalent to the previous GED test.

WSJ: Test Maker Pays New York State Students to Take a Trial Exam

The severity of the laboratory test was equivalent to an oblique collision with the rocky surface of the Earth - a comet coming in at an angle of less than 25 degrees from the horizon, rather than head on (perpendicular to the Earth's surface).

BBC: Comets could have seeded life on Earth

U.S. intelligence agencies estimated that the 2006 North Korean test produced a blast equivalent to less than 1, 000 tons of TNT, a fraction of the size of the bombs the United States dropped on Japan at the end of World War II.

CNN: N. Korea nuclear test reverberates worldwide