查询词典 permanence

Against this sense of temporary existence spirit offers you the knowledge of permanence and unshakeable being.

灵性所带给你的是对恒常的真知以及屹立不摇的实存，与上述的暂存感正好相反。

From the avenue of cedars to the row of white cabins in the slave quarters, there was an air of solidness, of stability and permanence about Tara, and whenever Gerald galloped around the bend in the road and saw his own roof rising through green branches, his heart swelled with pride as though each sight of it were the first sight.

从林荫道的柏树到奴隶区那排白色木屋，到处都能使人看到塔拉农场的坚实、稳固、耐久的风采。每当杰拉尔德骑马驰过大路上那个拐弯并看见自己的房子从绿树丛中耸出的屋顶时，他就要兴奋得连同心都膨胀起来，仿佛每一个景观都是头一次看到似的。

Some lean back in majestic repose; others, absolutely sheer, or nearly so, for thousands of feet, advance their brows in thoughtful attitudes beyond their companions, giving welcome to storms and calms alike, seemingly conscious yet heedless of everything going on about them, awful in stern majesty, types of permanence, yet associated with beauty of the frailest and most fleeting forms; their feet set in pine groves and gay emerald meadows, their brows in the sky; bathed in light, bathed in floods of singing water, while snow-clouds, avalanches, and the winds shine and surge and wreathe about them as the years go by, as if into these mountain mansions Nature had taken pains to gather their choicest treasures to draw her lovers into close and confiding communion with her....

每一块岩石似乎都富有生命力，有的向后倾斜，泰然自若，有的拔地而起数千英尺，高於它们的夥伴，垂直或近乎垂直地耸立著，彷佛深陷在沈思之中，对风暴和平静一概表示欢迎。它们表面上看起来神志清醒，却又对周围的一切无动於衷，庄严中带有柔美，永恒中却又显出变幻。它们屹立在松林中或座落在草地上，崖顶耸入云端，沐浴在阳光和流水之中，崖顶四周白云飘绕，积雪闪光，山风吹拂，大自然似乎使出了最上乘的法宝，来把她的情人拉到自己的怀抱，吐露钟情。

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。

Sufficient conditions are derived for the permanence and for the existence, uniqueness and global attractivity of periodic solution.

给出了当系统为周期系统时，其周期解存在惟一和全局吸引的条件

With the help of the theory of difference equation and some subtle analysis, sufficient conditions which ensure the permanence of the system are obtained. By constructing a suitable Lyapunov functional, sufficient conditions which ensure the global attractivity of the system are obtained.

首先利用差分方程的有关理论以及技巧性的计算，得到保证该系统永久持续生存的充分性条件；其后通过构造适当的差分Lyapunov泛函，得到保证该系统全局吸引的充分性条件。

By using comparison principle, the sufficient conditions of this model with global attractivity of infection-free periodic solution and system permanence were obtained.

研究一类具有阶段结构和脉冲免疫的SIR模型，利用比较原理得到此模型无病周期解全局吸引和系统持久的充分条件，并利用数值模拟验证结论。

For general nonautonomous case, by means of the lower and upper averages of a function, under the conditions that the restriction on coefficients of the systems is relaxed further, some new results on the logistic equation are obtained, and sufficient conditions are given for permanence and global attractivity of the systems.

对于一般非自治情形，借助于函数的上、下平均值，在进一步放宽了对系数限制的情况下，我们得到logistic方程的一些新结果，给出了系统持久和全局吸引的充分条件。

Firstly, sufficient conditions are given for permanence and global attractivity of the systems, and some results of Li Chuanrong and Lu Songjian on the periodic systems are generalized to general nonautonomous systems.

首先，我们给出了该系统持久和全局吸引的充分条件，把李传荣和卢松坚关于周期系统的有关工作推广到一般非自治系统；其次，改进了周期情形的有关结果。

Pelek Baw, the only Balawai settlement of real permanence, became the sole government on Haruun Kal.

佩列克堡是唯一的巴拉韦人长期定居点，也是哈伦卡尔上唯一的政府。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐