So the = 1 tests that the result of this union only contains one element, meaning that the currently-tested element is the first one in the document with its address.

因此，用来测试并集结果的 = 1 表达式只包括一个元素，这意味着当前测试的元素是包含地址的文档中的第一个元素。

youdao

Use cases drive the testing process, but they cannot directly address many types of tests cases.

用例驱动测试过程，但是它们不直接处理各种类型的测试用例。

youdao

For both modes, tests were conducted to measure the overhead associated with Name and Address standardization and suspect duplicate processing.

对于这两个模式，我们执行了一些测试来测量与Name和Address标准化和可疑副本处理关联的开销。

youdao

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