不准确

Fisher criterion assumes that each sample has a unimodal,symmetric distribution for each class.However,when the training sample size is large and their distributions are multimodal or skewed,the definition of classical Fisher criterion can not correctly reflect the distribution of the data in the sample space,in that case,the sets of discriminant vectors are not optimal virtually.

Fisher准则函数的前提条件就是假设每类样本数据满足单峰高斯分布，即各类样本在模式空间的分布近似椭球状，但是当训练样本数据较多且呈多峰分布时，传统的Fisher准则函数并不能准确反映样本数据的分布，显然基于Fisher准则函数的线性判别分析得到的最优判别矢量集也不是最优的。

It is indicated that the current and capacitance model is continuous and accurate across the linear and saturation regions without any unphysical interpolation scheme.

电流和电容模型在线性区和饱和区都是连续和准确的，不需要没有物理意义的光滑处理。

I not only must go over the fish in my mind all night, trying to work out its as yet unrevealed but most obvious feature in its absence, but also have to tell my discoveries to the professor the next day without reviewing them.

我不但必须整夜去想那条鱼，鱼不在跟前得反复琢磨出那未知而又极其明显的特征是什么，而且在无法重温已经发现的特征的情况下，还要在第二天准确地把那些特征描述出来。

With a persisting development in tumor targeting viruses as a special anti-tumor agent and therapeutic gene vector for the recent years, a number of highly effective, targeting virus vectors have been exploited, which still did not satisfy the requirement for cancer targeting therapy in clinic. However, it has remained unsolved in how to effectively and veraciously deliver these targeting viruses to the tumor tissues.

肿瘤靶向性病毒作为一种特殊的肿瘤治疗药物和基因治疗载体近年来已得到长足发展，许多高效、靶向性病毒载体已被相继研究开发，但仍不能满足临床上肿瘤靶向治疗的需要，如何将这些靶向病毒准确而高效地运输到肿瘤病变部位仍然未得到充分解决。

It's also a sentence that makes you realize we are swimming in verbiage, and that the answer is not 'enrichment'-- except in the sense that we should try to make do with fewer words.

这句话也让我们意识到自己正浸淫在修辞的海洋中，我们不应该再一味地"添加"了，而是应用较为简单的方式进行表达，并保证措辞准确。

The green vitta that shows on the toolbar that everybody sees, more accurate should call visible toolbar PR value, is not Google interior is used at ranking calculative true PR value.

大家所看到的工具条上显示的绿色条，更准确的应该称为可见的工具条PR值，而不是Google内部用于排名计算的真实PR值。

The experimental characterisation is intended to point out a complete high frequency low signal model of high power IGBT modules that includes the RF voltage amplification effects.

此实验的特点在于指出了一个完整的包含了RF电压放大效应的高功率IGBT模块的高频率低信号模型。---大概就是这样，有些名词可能不太准确，楼主再参详参详。

Because the weatherman is not always right.

天气预报员说的不总是那么准确。

We still can't say exactly why, Weiss says.

威斯说："我们还不能说明准确原因。"

From: Steve Welch: When you get more information from diverse sources, you don't always get more accurate information.

当从不同的来源获得更多信息时，你不会总是能得到更准确的信息。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失