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The flashover performance of ice-covered XZP-210 insulator string s was investigated and the effects of the string length and arrangement on the icing flashover voltage were analyzed.

该文在人工气候室模拟高海拔和覆冰环境，试验研究了XZP-210直流绝缘子串在轻覆冰时的冰闪特性，分析了冰闪电压与串长和布置方式的关系。

With the string of related processing technology development, a string of increasingly widespread, especially in the text retrieval, network and biology computing.

随着相关的字符串处理技术的发展，字符串应用越来越广泛，尤其是在文本检索、网络查询以及计算生物学中。

With development of the string processing technology, application of string are getting wider and wider, expecially in text retrievel, network searching and computational biology.

随着相关的字符串处理技术的发展，字符串应用越来越广泛，尤其是在文本检索、网络查询以及计算生物学中。

In recent years,with the development of super string theory,manyattempts have been done to explain the statistical origin of black hole thermodynamicsin the frame of string theory.In all these works,the AdS/CFT correspondence conjec-ture attract much attention.

近年来，随着超弦理论的发展，许多学者都试图从超弦理论的角度来研究黑洞热力学，特别是最近AdS/CFT对偶猜想的提出，极大的推动了这方面的研究。

It has 27 young cubes building blocks, all linked with a string it,also between the string and the building block all had the place whichmight move, suspended it by three cubes evil spirit square shapes.

它有27块小正方体积木，用一根绳子把它都连起来了，且绳子与积木之间都有可活动的地方，把它摆成一个三乘三正方体的魔方形。

Based on the practice of the use of φ95mm subsurface sucker rod pump in Shengtuo Oilfield in recent years, the causes of the failure of the pump are analyzed, and relevant precautions are put forward:(1)selecting oil wells with sufficient fluid supply for pumping;(2)under the condition of the pump efficiency being the same, the submergence depth of the pump being somewhat larger than that of the small pump, and 450～500m being feasible;(3)adopting Grade H ultrahigh-strength rod string and fixing a sinker bar at the bottom of the rod string;(4)selecting long stroke and low pumping speed, and more than 5m stroke and less than 6min-1 pumping speed being recommended;(5)adopting zirconium oxide valve ball and seat ＋ spray welded plunger ＋ nitrided barrel.

根据胜坨油田近几年采用φ95mm有杆抽油泵提液的实践，分析了造成这种抽油泵失效的原因，包括与其配套的脱节器失效、抽油杆断脱、泵漏、电动机不配套和生产管理不善等。为增强泵的提液能力和工作可靠性，提出5 项预防措施：(1)选择有充足供液能力的油井；(2)在保持相同泵效的情况下，泵的沉没度应略大于小泵，推荐按450～500m设计；(3)采用H级超高强度抽油杆柱，并在杆柱底部配置一定重量的加重杆；(4)采用长冲程、低冲次的参数匹配，推荐光杆冲程大于5m，冲次小于6min-1；(5)为提高泵筒、活塞和阀座的防腐耐磨性，推荐采用&氧化锆阀球和阀座+喷焊柱塞+氮化泵筒&的结构形式。

It uses advanced completion pipe string and sand fracturing pipe string in completion process to attain the goal of layer fracturing and selective zone production of the parent well and its branch.

XQ90井是我国在川西地区所钻成的第一口气井分支井组，该井在完井工艺上采用了先进的完井管柱和加砂压裂管柱，达到了主、分支井分层压裂，分层开采的目的；其自行研制的双管采气井口可以分别控制主、分支井井口油压，为后期的采气作业提供了可靠的保障。

The music by a three-string violin may not sound as harmonious as a four-string violin, yet it is more vigorous and more animated.

三支弦演奏出的曲子也许并不如四支弦的小提琴演奏出的曲子和谐动听，但是这支曲子更有活力，更有生命力。

The music by a three-string violin may not sound as harmonious as a four-string violin, yet it is more vigorous and more animated.

三支弦弹奏出的曲子也许并不如四支弦的小提琴演奏出的曲子和谐动听，但是这支曲子更有活力，更有生命力。

Based on the requirement of internal trade , oversea merchant and musical instrument jobber , we offer two kinds of string, in the main is our factory band string(top grade parper box pack/ medium grade hang bags pack/ common plastic bags pack), the other is the copy of famous band stringsincluding Daddario/ Fender/ Martin/ Yamaha etc.

另外，我厂为针对于国内/国外贸易商，乐器批发商，大琴行的需求，推出套弦两大类，主类为本厂品牌包装弦(高档纸盒包装/中档挂袋包装/普通胶袋包装)，辅类为高仿琴弦(达达里奥/芬达/马丁/雅马哈/等等)。

A carrier gas such as nitrogen is directed through line 20 and valve 22 to connect with line 26 and mix with the gas sample.

如氮气之类的载体通过管线20和阀22引入，与管线26相通，与气体样品混合。

But for the most part, knaves and parasites had the command of his fortune

然而支配他的家产的大多是恶棍和寄生虫。