本文提出了一种先经过四个步骤的粗调，然后再进行细调的简单快速实验方法。
The paper puts forward a simple and brief experiment method which contains four steps of rough adjustment first followed by fine adjustment.
散列函数非常复杂，但现代类库中都有现成的类，重要的是，如何对散列法进行细调以获得最好的性能。
Hash functions can be complex and sophisticated, but modern libraries have good defaults. The important thing is how hashes work and how to tune them for maximum performance benefit.
他们会在同一个电子邮件诈骗中，采用多个不同的标题，比较不同标题得到的反馈率，再对内容用语进行细调，以便下一次行动。
They may use different subject lines in the same E-mail scam, comparing the response rates and then fine-tuning the language in the next round.
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