It studies the vertical testability and vertical test compatibility problem of testability engineering and analyses its important actions.

针对测试性工程中的纵向测试性和纵向测试兼容性问题进行研究，分析了测试兼容性设计的重要作用；

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It studies the vertical testability and vertical test compatibility problem of testability engineering and analyses its important actions.

针对测试性工程中的纵向测试性和纵向测试兼容性问题进行研究，分析了测试兼容性设计的重要作用；

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