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The advantages and disadvantages of the dry pulverized coal gasification were pointed out.

简述了气流床干煤粉气化技术的应用状况和研究进展，分析了干煤粉气化的技术优势和存在的问题，并提出一些改进建议。

The merits of its performance, it is representative of the advantages and disadvantages of pump performance, the anti-clogging sewage pump performance, the level of efficiency and cavitation performance, anti-abrasion performance mainly by the pressurized water pump and leaves room to ensure that the two major components.

其性能的优劣，也就代表泵性能的优劣，污水泵的抗堵塞性能，效率的高低，以及汽蚀性能，抗磨蚀性能主要是由叶泵和压水室两大部件来保证。

In this paper, the principle of push-pull forward converter is analyzed in detail, three secondary-side rectifier topologies are studies contrastively and the advantages and disadvantages are compared.

本文详细分析了推挽正激变换器的工作原理，对比研究了该变换器的三种次级整流结构，比较了各自的优缺点。

Though analysies for the big-brand strategies used in digital audio-visual industry and the comparasion between the advantages and disadvantages of China small enterprises ,this article indicated that only if small enterprises insist on big-brand strategies and put them into practise when they stand up beween othr enterprises they can get some place for long-term profitability development.

本文通过对品牌战略的分析，运用在视听数码产业上，通过具体分析我国小企业现存的优缺点来阐明小企业要想在视听数码产业中获得一席之地并长期的获利发展，就要在开始进入时坚持发展品牌战略并付诸实践。

To the old .using internet has many advantages.but also has some disadvantages.the old is old in age .during their late years .they learn using internet to talk with someone also old or to play small games to happy himself.but it＇s not easy for the old to be on net too long.firstly.computers have radiancy,secondly.the old＇s sight may turn down again by long-time using internet when their sight is not very good,Third.the old may be frighten by the inundant behavior of hostility in the net.

对老年人是益多害也有。老年人年纪大了。到了晚年学会上网。在网络里找一些老年朋友谈谈心。打一打小游戏。愉快一下心情。但是老年人不易长时间上网。一。是电脑有辐射。二。是老年人的视力大多数都不是很好了。在经过长时间的上网。视力可能会在度下将，三。是现在网络里的恶意行为很多。老人可能会受到惊吓！

However, there are some disadvantages. For example, radiation is harmful to people's healthy.

然而，也有不好的地方，比如，手机辐射对人们的身体健康有害。

Comparison of the radio frequency identification technology and other automatic identification technology advantages and disadvantages.

比较了射频识别技术和其他自动识别技术的优缺点。

In the first chapter of this paper, the theory of laser range finder is introduced; the technological disadvantages are discussed.

本文首先介绍了利用激光测距的原理，然后针对现有激光测距方法的局限性，提出了相位激光测距方法。

However,they wouldn't like to imposed their ideas on the students,and they espect the students to weigh the advantages and disadvantages of the way to treat professional education,rathe than shrink away at their disposal.

不过，他们并不愿意把他们的想法强加给学生，他们希望学生们在如何对待专业学习这个问题上能权衡利弊，而不是消极回避。

The method of white noise simulation on road roughness based on rational function is analyzed with its disadvantages pointed out.

对基于有理函数的路面不平度白噪声激励模拟方法进行了分析，指出了该方法存在的不足。

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。