This expression may be used as an indirect testing method of noise equivalent bandpass.

该表达式可用作噪声等效带宽的一种间接测试方法。

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The results imply that the direct testing method can provide more information than indirect testing.

实验结果表明，采用直接测试方法能为教师提供更多的反馈信息。

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The direct testing, especially the indirect testing with many uncertain factors in it, both are complex process.

直接检验，特别是间接检验，存在着很多不确定因素，因而是一个复杂过程。

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