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As with all modern machines, there are advantages and disadvantages to using each of these printers.

如同所有的现代设备，有优点和缺点，以分别使用这些打印机。

In short , owning a private car has both its advantages and disadvantages.

总之，拥有一辆私家车都有其优点和缺点。

Make further study of basic principle of ant algorithm, overall analysis and set up mathematic model for it, including transfer probability calculation, time and space complexity, realization problem, advantages and disadvantages and so on.

并从解的质量、时间/空间复杂度、实现难度、算法的优点及不足之处等各项指标对蚁群算法进行全面的分析，并以TSP(Travelling Saler Problem，旅行商问题)为例，介绍了蚁群算法在路径优化问题领域的应用。

In this paper, the existing laws of our analysis of the relevant provisions, pointing out that the disadvantages of probate and how to improve the freedom of our country put forward their own recommendations

本文通过对我国现行法律的有关规定进行分析，指出其弊端并对如何完善我国遗嘱自由提出自己的建议

In view of these disadvantages in the FEM model for the tire geometry, however, a new piecewise Ritz procedure is developed and presented in this dissertation for semi-analytical study of the contact problem of tire and road interaction.

针对现有的轮胎分析模型的计算量大并且不够精确的不足以及轮胎的几何结构和它的特点，本文发展了分片Ritz法进行轮胎／路面的接触问题分析。

Disadvantages of 4: structure complex, product strength is not high, easily broken.

缺点4：结构复杂，产品强度不高，容易坏。

In view of disadvantages in present defect reconstruction methods,such as over-long time or excessive need for training samples,a new defect reconstruction method based on similar model and genetic algorithm was investigated as follows:similar model between non-axisymetric defect and axisymetric defect was represented,and proportionality factor was deduced by skin depth equation.

针对以往缺陷重构方法中普遍存在的计算时间长或需要大量训练样本的缺点，提出一种基于相似模型和遗传算法的缺陷快速重构方法，分析非轴对称缺陷与轴对称缺陷之间存在的相似模型，并利用集肤深度公式推导出两者之间的缩比因子，从而将耗时巨大的缺陷重构问题转换为二维轴对称情况下的计算问题；同时为进一步缩短重构时间，提出一种加快遗传算法收敛速度的方法。

Based on the description of the existing methods for wear intensive automatic measurement by milling tools abroad, the advantages and disadvantages of the metheds and their application areas are comparatively discussed and their application prospection in our military production is analyzed.

综述了国外现有的铣削刀具磨损量自动检测方法，对比分析了各方法的优缺点及应用范围，并对其在我国军品生产中的应用前景进行了初步分析。

BACKGROUND: Nowadays positive pressure ventilation has been widely applied in breath prostrating and other diseases of lung. But its disadvantages, such as pneumonia relating to breathing machine, abnormally low blood pressure and difficulty in removing breathing machine, bring risks for patients while supplying breathing function.

摘要背景：目前正压通气技术广泛应用于呼吸衰竭等肺部疾病的治疗，但由于正压通气也存在着诸如呼吸机相关肺炎、低血压和撤机困难等弊病，使得该技术在实现呼吸维持功能的同时也给患者带来了更严重的生命威胁。

There are several different tools and technologies you can use for creating prototypes, each of which has its advantages and disadvantages.

有几种工具和技术你可以用来创建原型，每一种有其优点和不足。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。