查询词典 compression

In addition, when the nonlinearities have the properties of mixed-monotonicity, the existence of a positive solution for difference equations is ob-tainded by using fixed point theorem in a cone or fixed point theorem of conic expansion and compression.

在最后一部分讨论了带有特征值的非线性二阶差分方程正解存在性问题，利用锥压缩与拉伸不动点定理及逼近性理论，在一定的假设条件下，得到了差分方程正解存在性。

By changing differential equations into nonlinear integral equation,we study the existence of positive solution of a class of second order differential equations problems by the fixed point theorem of cone expansion and compression,and the fixed point index theorem,then we obtain two multiple positive .

通过将常微分方程转化为非线性积分方程，利用锥拉伸和锥压缩不动点定理和不动点指数讨论了一类二阶常微分方程的正解存在性问题，在一定条件下，得到了几个多重正解定理，同时证明了与此相关的主要引理

On the basis of the above references, this paper attempts to make use of cone compression and expansion fixed point theorem, Mnch fixed point theorem and fixed point index theorem to discuss a special kind of singular boundary value problem-Lidstone boundary value problem.

主要包括以下三个方面的内容：第一章考虑了Banach空间中2n阶奇异边值问题正解的存在性，其中f在t=0，1处具有奇异性这里θ表示Banach空间E中的(来源：faABC论文网www.abclunwen.com零元。

By using the theorem on cone expansion and compression and a fixed point theorem on cone,this paper is concerned with the existence of positive solutions for some boundary value problem of singular nonliear semipositive second-order three-point boundary value problem,which improve many known results.

运用锥拉伸与压缩不动点定理研究非线性奇异半正二阶三点边值问题正解的存在性，推广了一些已知的结果。

In order to solve the special technical problems, a structure model with double-stair and multiple-stage compression was given, the structure of pressing chamber of present screw press was improved, and a laboratory-scale cold expeller was designed and manufactured.

针对双低油菜籽脱皮籽仁在冷榨过程中存在的一些关键技术问题，提出了双阶多级压榨的冷榨结构模型，对现有的螺旋榨油机的榨膛结构进行了改进，设计并制造了一种小型实验型冷榨机。

"Sky-Bone Expender" Kyphoplasty was efficacious and safety in the treatment of vertebral compression fractures.

应用Sky成形器行经皮椎体后凸成形术治疗椎体压缩骨折有一定的临床疗效和安全性。

Initial Outcome and Efficacy of "Sky-Bone Expender" Kyphoplasty in the Treatment of Painful Vertebral Compression Fractures.

目的：探讨应用Sky可膨胀式椎体成形系统行经皮椎体后凸成形术的临床疗效。

Based on the comprehension of the researches of CO2 expressor, rolling piston expresser has been designed independently with the roilling pistons of expansion chamber and compression chamber integrated with the same shaft. Design parameters have also been calculated concretely

综述了国内外CO2膨胀压缩机的研究现状，分析了现有膨胀压缩机的技术特点，独立设计了膨胀腔活塞与压缩腔活塞同轴联接的滚动活塞式膨胀压缩机，同时，还进行了具体的参数计算。

According to LetournelJudet classification,there were 2 transverse and posterior wall fractures,8 Tshaped fractures,3 anterior fractures accompanying posterior hemitransverse fractrures and 13 both column fractures.these patients were all treated through extensile acetabular approach.The reconstructive plates and compression screws were used for internal fixation basing on different classification.

回顾性总结了2002年至2005年收治的资料完整的手术治疗髋臼骨折26 例，按照LetournelJudet分型：横行伴后壁骨折2 例，T型骨折8 例，前方伴后方半横行骨折3 例和完全双柱骨折13 例，均采用扩展型的髂股切口手术治疗，根据不同骨折类型采用重建钢板和拉力螺钉固定。

According to Letournel Judet classification,there were 2 transverse and posterior wall fractures,8 T shaped fractures,3 anterior fractures accompanying posterior hemitransverse fractrures and 13 both column fractures.these patients were all treated through extensile acetabular approach.The reconstructive plates and compression screws were used for internal fixation basing on different classification.

回顾性总结了2002年至2005年收治的资料完整的手术治疗髋臼骨折26 例，按照Letournel Judet分型：横行伴后壁骨折2 例，T型骨折8 例，前方伴后方半横行骨折3 例和完全双柱骨折13 例，均采用扩展型的髂股切口手术治疗，根据不同骨折类型采用重建钢板和拉力螺钉固定。

The role of the environment is very important.

的作用，环境是非常重要的。

At that time, the High Court of England and Wales Court of Queen's Bench president of William Murray, Lord Mansfield in June 22, 1772 ruling:"No matter then there is the inconvenience, but there must be a decision, I can not say that this case under the law in England are permitted or authorized; are so black should be released."

当时的英格兰及威尔士高等法院王座法庭院长William Murray， Lord Mansfield于1772年6月22日宣判：「无论有那麽不便，但总要有个决定，我不能说这件案在英格兰法律之下是准许或认可；所以黑人是应该被释放。