其实，对于第二类错误的控制也是十分必要的。
In fact, the second type of error control is also essential.
在很多时候，我们往往只注意第一类错误的控制，而对于第二类错误经常不考虑。
In many cases, we tend to only pay attention to the control of the first type of error, while the second type of error often being not considered.
本文对于两类错误的成因以及如何控制第二类错误进行了探讨，希望对于第二类错误的控制提出一些解决的方法。
Causes of the two types of errors and how to control type II error are discussed and solution is proposed for reference.
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