渐增的

By means of augmented Lyapunov functional and free-weighting matrix approach,a delay-dependent sufficient condition is presented,which can make the resulting closed-loop systems asymptotically stable and satisfy a prescribed H∞ norm-bounded constraint.

利用增广Lyapunov泛函并结合自由权矩阵方法，得到使得闭环系统鲁棒渐近稳定且具有给定的H∞性能的时滞相关充分条件。

Based on these, the method for analysing the thermal-mechanical problems during the film depositon is proposed, and some mechanical problems are studied which include the asympototic analysis of the stress and deformation in a nonhomogeneous material layer on a substrate and the weight function method for interface crack problems as well as the mechanics of an interface toughening induced by the dilatant transformation.

本文对这些方面的研究及其成果进行了较全面的评述，并在考察了一个薄膜-基底系统（等离子喷涂ZrO〓陶瓷涂层的工艺研究）的生产研究的全过程的基础上，对薄膜沉积过程中的热-力学分析方法和包括表面异质层中应力变形的渐近分析方法、界面裂纹问题中的权函数方法、相变引起的界面增韧的力学分析方法等在内的一些薄膜-界面-基底系统的力学问题进行了研究。

The boundary conditions are assumed to be either the Dirichlet condition or linear Robin conditions.

在第一章，我们应用上、下解方法，bootstrap技巧和Schauder不动点定理考察如下三类周期反应扩散方程组的周期稳态解的存在性和一般的时变解的渐近性态：（1）拟单增系统；（2）混拟单调系统；（3）一个非拟单调2-系统，其边界条件是Dirichlet条件或线性Robin条件。

In Chapter 1, we use the upper and lower solutions method, the bootstrap technique and the Schauder fixed point theorem to investigate the existence of periodic solutions and the asymptotic behavior of general time-dependent solutions for periodic reaction-diffusion systems of the following three types:(1) Quasimonotone nondecreasing system;(2) Mixed quasimonotone system;(3) A nonquasimonotone 2-system. The boundary conditions are assumed to be either the Dirichlet condition or linear Robin conditions.

在第一章，我们应用上、下解方法，bootstrap技巧和Schauder不动点定理考察如下三类周期反应扩散方程组的周期稳态解的存在性和一般的时变解的渐近性态：（1）拟单增系统；（2）混拟单调系统；（3）一个非拟单调2-系统，其边界条件是Dirichlet条件或线性Robin条件。

There is no doubt that bacteria are the main etiologic agents for periodontal disease. With the progression of periodontal destruction, the following syptoms may occur: moderate to severe gingival inflammation, increased tooth mobility, pathological migration, vertical occlusal dimension loss, improper crown to root ratio, furcation involvement, absence of keratinized gingiva, unaesthetic appearance, as well as difficulties in chewing causing by unstable occlusion.

中文摘要细菌是牙周疾病的主要致病因素已是不争的事实，但随著牙周疾病破坏的进程，临床上表现出来的徵兆除了中度至重度不等的牙龈发炎现象之外，更可发现牙齿摇动度渐增、牙齿位移、咬合高度丧失、不良的牙冠根比、根叉病变、角化牙龈宽度不足、美观不佳、更甚者缺乏稳定的咬合导致咀嚼困难等。

We obtain the conditions of asymptotical stability of the pest-eradication periodic solution and permanence of the system.

在第四章中，应用天敌助增(即天敌的人工繁殖和释放)的方法，建立了在固定时刻释放天敌的具有一般功能性反应的三种群的食物链模型，并系统地研究了系统在释放天敌这种外在的不连续受迫作用下的动力学性质，得到了害虫根除周期解存在性和渐近稳定性，以及系统持续生存的条件。4。

The OECD estimates in its latest Economic Outsee those, if oil prices averaged $22 a barrel for a full age, compare notd with $13 in 1998, the will increase the oil import bill in rich economies by only 0.25---0.5% of GDP.

OECD在其最近的《经济瞭望》中估计，假如石油价格与1998年的每桶13英镑相比在一年中平均为每22英镑，这也只会给富裕的经济体的石油进口账单上渐增GDP的0.25％到0.5％。

This implies a major stage of crustal growth in Proterozoic time and remelting of the crustal material in Early Jurassic time;(5) The Oligocene-Miocene adakites contain magmatic zircons that show similar Hf isotope compositions to the Cretaceous-Paleogene Gangdese batholiths, providing a key constraint that allows evaluation of the nature and timing of crustal thickening in southern Tibet owing to the India-Asia collision; and (6) As a whole, the Hf isotope information observed in zircons from the above Transhimalayan rocks demonstrates a temporal variation in εHf values, and thus TDMC ages, that suggests multiple stages of orogenic or crustal formation events.

五、渐新世、中新世的埃达克岩，其岩浆锆石的铪同位素特徵与白垩纪、古第三纪冈底斯岩浆相似，因而为藏南在印亚碰撞以后，地壳增厚的时间与机制提供了关键性的制约；六、综观上述藏南火成岩中的锆石，它们与时变化的铪同位素初始值及其对应的模式年龄记录了拉萨地块多阶段的造山与地壳形成历史。

There are no conditions for the long pitch wear corrugations forming and developing in the straight track.

认为半径较小的曲线上，波磨主要是低速货车的作用，大半径曲线上机车的作用渐增，直线地段不存在磨损型长波磨耗的形成和发展条件。

"Using ATMs is impersonal and lacks communication," say a spokesman for the bank which is based in Gifu prefecture, central Japan."We requireed to add some fun."

大垣共立储蓄所坐落在日本Japan中部的岐阜市，该储蓄所的一名发言人表达：&实际运用自动取款机是非一自己且缺乏沟通的行为，咱们期望为顾客渐增些乐趣。&

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。