有缺点的

In this paper, we present an analysis of quotient image method from the view of image linear subspace, and point out its main deficien- cies: 1 inaccurate assumption of ideal class of object, 2 3-d subspace doesnt suffix to represent all images of an object under varying illuminations.

在本文中，我们从图像子空间的角度对商图像方法进行了分析，理论分析和实验表明，这种方法存在的主要缺点有：1不准确的理想类假设；2简单的三维点光源模型无法很好地近似任意光照情况。

A fault diagnosis based on wavelet and PNN was introduced, which firstly uses Mexican Hat wavelet to transform diagnosis signal and extract energy normalized vector, then uses PNN to output fault as a classifier.

针对煤矿主通风机故障与征兆对应关系复杂的特点，以及利用传统BP网络进行故障诊断存在训练速度慢、易陷入局部极小的缺点，提出基于小波和概率神经网络的故障诊断方法：先利用时频两域有紧支撑能力的MexicanHat小波变换故障信号并提取能量归一化故障特征向量；然后将概率神经网络作为诊断决策分类器，输出故障模式。

In the traditional reservoir operation system, in general, we use the rule curve as a method of operation, and the reservoir rule curve is the result of system simulation method. Due to the regular and simple rule curve operation unable to satisfy the actual demand effectively. In order to improve the defect, there are many system planning theories and optimum seeking methods to find the optimum operation strategies. The reservoir operators are uncomfortable with the complicated optimum operation strategies. In this article the fuzzy inference model is used to establish a simple and effective operation rule for the reservoir operator.

在传统的水库操作系统中，一般都使用操作规线为操作方式，水库操作规线是系统模拟法所获得的结果，由於规律、简单的规线操作方式往往无法有效满足实际需求，为了改善传统操作上的缺点，近多有利用系统规划之理论，应用各种优选方法求取最佳操作策略，系统最佳操作策略其模式复杂，水库操作人员不易接受，故本文即以模糊推论系统建立一简单有效之操作规则予水库操作人员，作为水库操作放水之依据。

In the case of the same sensor number,this method which adopts appropriate array geometry arrangement can improve the resolvability of DOA estimation more obviously than the uniform linear array.

在阵元数一定的情况下，该方法可使阵列的方位分辨率较之均匀线阵有较大的改善，而且还克服了一般稀布线阵方位估计模糊和去相关能力差的缺点，成功地将空间平滑MUSIC这一经典方法用于非等矩阵。

Nevertheless, we admit that it would bring about adverse influences on students to use this resources unlimitedly.

意见相同可以鼓励人们学习的积极性，人们更愿意从和自己意见相同的人身上学习；使人们盲目自信，看不到自己的缺点而阻碍进步，和自己相同的人知识面有限制

Yet for all his flaws, one thing cannot be doubted: Mr Brown has for 20 years been a giant on the British political landscape, a Gladstonian figure with a constant claim to a "moral compass".

然而，不论他有着怎样的缺点，有一件事是不容置疑的：20年来布朗一直是英国政界的一个巨人，一个始终恪守&道德指南针&的格莱斯顿式巨人。

This paper bases on the former documents which related to the distance in HMM (we also proved Juang and Rabine's intuitionistic discussion strictly ), and study the distance in HMM from two aspects:the one is to find the more rapid and effective approximate algorithm, the other is to introduce a new and more applied distance.

针对J-R距离在理论上很有意义，但实际上难以计算且结果具有不确定性的缺点，利用文献[11]，得到了近似计算离散HMM和具有混合高斯观测密度的连续HMM距离的一种快速有效的算法，该算法用矩阵形式来表达，便于用MATLAB进行计算。

Passivation process also has some drawbacks, including hard buck coke catalyst bed treatment、polythionic acid stress corrosion cracking prevent for sensitively materials, meanwhile passivation process must be coordination between skillful local workers with knowledgeable company.

钝化法也有一些潜在的缺点必须注意，同时也是需要厂商负责保证，主要包括大块结焦废触媒的处理、钝化剂化学成分是否会对设备材质造成潜在伤害的确认及设备因敏化而产生聚硫酸应力腐蚀的预防等。

Fortunately, the modern geodetic measurements such as the Global Positioning System technique can overcome the shortage of the geological and seismographic methods in the time dimension; and yet, the coverage of the geodetic survey stations is not sufficient. As a result, it is necessary to employ numerical simulation to investigate the continuous deformation of the crust.

而以全球定位系统等技术为主的大地测量方法弥补了地质和地震学方法在时间维上的不足，但大地测量方法存在测点覆盖不足及测点地理分布不均匀的缺点，因此，要得到连续的地壳形变场有必要借助数值模拟方法。

A successful executive assessment process should be designed to measure those competencies that are critical for success in your organization, and those that are potential derailers to success.

成功的高管测评程序应该衡量那些对组织的成功起最关键作用的技能，以及最有可能导致失败的缺点。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。