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The commercial airlift reactor in terms of their construction ,design parameters and applications,advantages and disadvantages are reviewed.

综述了多种工业气升式反应器的结构、设计参数、优缺点及适用场合。

Objective To investigate the synthesis methods Veratrum aldehyde and to study the synthesis of microwave radiation of the advantages and disadvantages of this new approach, to provide guidance for the production of meaning.

目的 考察合成藜芦醛的方法，并研究微波辐射合成这种新方法的优缺点，为生产提供指导意义。

In this study enamine was used as the reactive intermediate for alkylation of cyclohexanone alkylate,to provide a new route to synthesize the perfume-α-tert-butylcyclohexanone after overcoming many disadvantages of the traditional technical route,such as the complicated of reaction steps,the expensive reagents adopted,the high demand for the equipment used,and the low yield of product.

利用烯胺作为环己酮烷基化的活性中间体，为香料α-叔丁基环己酮的合成提供了一条新的途径，克服了传统工艺反应步骤烦琐，试剂昂贵，设备要求较高，产率不高等缺点，易于工业化生产。

From what has been discussed above we may safely draw the conclusion that altho ugh extra studies indeed enjoy many obvious a dvantages its disadvantages shouldn't be ignored and far outweigh its advantages.

通过以上讨论，我们可以得出结论：尽管额外学习的确有很多长处，但它的缺点不可忽视，且远大于它的长处。

From what has been discussed above, we may safely draw the conclusion that, altho ugh extra studies indeed enjoy many obvious a dvantages, its disadvantages shouldn't be ignored and far outweigh its advantages.

通过以上讨论，我们可以得出结论：尽管额外学习的确有很多优点，但它的缺点不可忽视，且远大于它的优点。

So in althorn s opinion, the way to realize the purpose is to offer a course in art, develop variations of outdoor activities, heavily strengthen the research on art teaching, surmount the disadvantages informer art teaching, from new teaching ideas and seek new teaching methods...

笔者认为，不仅要开设开展好美术课程和各种课外活动，更要加强对美术教学的研究，克服以往美术教学中诸多弊端，确立新理念，探索新方法。

BACKGROUND: The disadvantages of traditional silver amalgam filling show up increasingly in recent years.

背景：近年来，传统的银汞合金充填修复的缺点已日益显现。

Based on the disadvantages of GM(1,1) prediction, this paper tries modifying it, and the modifying model is identified by the prediction of amble land in Wuhu City.

摘要针对GM(1，1)模型预测的不足，对其进行修正得到修正模型，并利用芜湖市耕地变化进行实例验证和应用。

During the manufacturing process ammoniac in commonly used as alkalizing agent despite serious disadvantages

在制造过程中，胺类通常被用来作为碱性调节剂使用，但是带来如下缺点

Through the comparison of the advantages and disadvantages of each method and their interconnections, in allusion to the idiographic circs of Changlejiang, which is one anabranch of Caoejiang river, this paper adopts section- beginning control to calculate the environmental capacity, applicates the physical connotations as welI as the adoptable conditions of each method into practice by the numbers ,the results of calculation indicating that all the methods are feasible and reliable.

本文通过分析比较各方法的优劣及其相互联系，针对曹娥江支流--长乐河的具体情况，采用段首控制对其水环境容量进行计算，系统地将各方法的物理含义及其适用奈件推广到实际中。计算结果证明了方法的可靠性。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。