unnecessary_introduction_有道手机词典

1.Although this serves as a useful introduction as to the structure of sysfs and exactly how udev matches values, manually trawling through sysfs is both time consuming and unnecessary.
虽然这对于关于sysfs的结构和udev如何匹配值的介绍很有用，但手工对sysfs的梳理是个既耗时也没必要的事。
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2.The experimental results show that the introduction of similarity probabilities can improve speech recognition and it is unnecessary to design a codebook as large as 256 codewords.
实验结果表明相似概率的引入有利于进一步提高语音识别率，同时发现大小为256个码字的码本是不必要的。
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