优点和缺点

This paper presents the theory of charge balancing techniques and the advantages and disadvantages of the presented methods.

这篇文章介绍了充电平衡的理论和现行方法的优点和缺点。

There are some advantages and disadvantages in both methods in terms of speed and level of security.

有一些优点和缺点，在这两种方法在速度和安全水平方面。

The structure and the principle of HST used for tractor are introduced.

介绍了拖拉机用HST的构成和原理，分析了它的特性和效率并讨论了它的优点和缺点。

The paper introduces three traditional theories on term structure of interest rate:expectation theory, liquidity preference theory, preferred habitat theory, and analyzes the advantages and limitations of each theory.

本文介绍了利率期限结构的三大传统理论：预期理论、流动性偏好理论和期限偏好理论，讨论了各种理论的优点和缺点。

Methods The clinical data of 43 adult patients (59 sides)suffering from chronic sinusitis with frontal sinus involved were analyzed retrospectively. The frontal sinus ostium was identified by the help of artificial frontal drill (20 cases) or XPS frontal drill (23 cases), and the efficacy was evaluated via postoperative follow-up of all cases. Results The ostia of frontal sinus were successfully opened in all cases, and no serious complications occurred.

回顾分析2004年12月～2007年8月间的额窦炎43例，因术中额窦开口难辨而采用额钉辅助定位，其中使用手摇额钻20例，XPS额钻23例，总结手摇额钻与XPS额钻的优点和缺点、使用过程中常遇到的问题和风险，以及各自的使用方法和注意事项。

Meanwhile, some limitations exist hi his theory, such as: obscure body-mind standpoint; intenseindividualism and moral relativism; fierce deintellectualization tendency; a theoretic system with much holes; lacking in positive research.

在社会问题方面：首先，皮尔斯提倡我们了解f＼硕士学住论文y面吧／ALA盯WS TI IESIS自己的优点和缺点，认清和表达自身的冲动和渴望，这对于文化传统一贯提倡忍耐约束却面临前所未有压力的国人，可以帮助人们缓解心理压力；其次，皮尔斯提倡充分认识和发展独特自我，这种对独立自我和个人价值实现的重视值得我们借鉴。

The simulation method based on the measures of disproportionality theory can be extended, and the simulation data generated can be applied very abroad. It is an important and practicable method to provide simulation data to evaluate the sensitivity and specificity, merit and shortcoming, feasibility and practicability of various methods of detecting adverse drug reaction signal.

基于不相称性测定理论的数据模拟方法仿真性、扩展性和可控制性强，能够广泛适用于各种信号检测方法，对研究各种方法的灵敏度和特异度、优点和缺点以及应用的可行性和实用性等具有十分重要的意义。

Through theoretic reckoning and simulating analyzing, several control strategies for shunt APF were compared and chose ip-iq arithmetic ofthe instantaneous reactive power theory control strategy as the right scheme to produce the instructing current. Based on it, some new control arithmetic was subjoined to suppress the resonance in system and balance the dc side capacitor voltage. Two topologies of main circuit were compared and chose the three-phase voltage-source converter with a split-capacitor as its main circuit structure. The numerical scales of the dc side capacitor and inductance of reactors were calculated. The high-pass filters were designed to eliminate effectively the highfrequency harmonics produced by APF.

通过理论计算和仿真分析，比较了并联型APF的几种控制策略的优点和缺点，从中选择瞬时无功理论控制策略i_p-i_q计算方式为指令电流产生的算法，并在此基础上增加了抑制系统谐振和平衡直流侧电容电压的控制；比较了并联型APF主电路的两种常见形式，从中选择了三相电压型变流器的主电路形式；算出适合该APF的直流侧电容和出线电感的参数；设计出能有效消除APF产生的高次谐波的高通滤波器。

Chapter ThreeIt systematizes the theories of Strategic Cost Management,introduces the concepts, characteristics,analysis methods(such as strategic value chain analyses,strategic location analyses and strategic cost driver analyses) and cost management methods (such as Target Costing and Activity-based Cost Management) related to Strategic Cost Management.

第三章对战略成本管理理论进行梳理，介绍了战略成本管理的概念，分析了战略成本管理的特点，介绍了战略价值链分析、战略定位分析和战略成本动因分析等分析方法，并对与战略成本管理有关的成本管理方法进行了介绍，主要介绍了成本企划和作业成本法，并分析了其优点和缺点。

Both in vivo and in vitro bioassay approaches offer their own advantages and disadvantages, some of which can be addressed using the toxicity identification and evaluation procedure.

无论是在体内和体外生物测定都分别有其特有的优点和缺点，其中一些测定法可以使用于毒性鉴定和评价程序。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。