恶化
- 与 恶化 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Symptoms include jerky, uncontrollable movements called chorea and deterioration of reasoning abilities and personality.
症状包括干的,不可控的变动所谓舞蹈病和恶化的推理能力和个性。
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Chronical renal failure results from the progressing deterioted of chronical renal lesions caused by all sorts of pathogeny.
慢性肾衰竭是各种病因引起慢性肾脏损害进行性恶化的结果。
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1Niche construction can lead to stable coexistence of diverse genotypes in spatially structured population, which supports a stable polymorphism even without heterozygote superiority.(2)With habitat deterioration, niche construction accelerates the formation of steady polymorphism and hence impedes the harmful influences of environment on the population, which might embody a life-history strategy of organism under the unfavorable environment.(3)Niche construction results in the coexistence with alternative polymorphism through genotype-environment feedback and limited gene flow.(4)The niche-constructing organism is an active force to alter its environment and hence the direction of natural selection in order to better survival.(5)Spatial dynamics and distribution pattern of metapopulation are profoundly influenced by time-lagged niche construction.(6)Metapopulation size can reach a fixed level in the recency effect and equal weighting of time lag but is statistical stability in primacy effect, which implies the primacy effect is most remarkable.(7)The increment in the relative weightingof each generation\' niche construction and the length of time lag are significant factors for system destabilization.(8)Moderate capacity of positive niche construction benefits the metapopulation persistence.(9)The narrowing of niche breadth can decrease the metapopulation size and thereby increase the extinction risk.(10)The coupled function of time lag and niche construction make the system oscillation and generate the spiral wave, spiral-broken and circular wave in heterogeneous habitat.The spatial distributions of metapopulation and resource content are complementary due to a phase lag of their both frequencies.(12)Metapopulation persistence with niche construction depends not only on the balance between colonization and extinction, but also on the balance between the ability of niche construction and natural dissipation of habitat.(13)Metapopula-tion can survive under certain condition when the percent of suitable patches in habitat is lower than the ration of extinction to colonization.(14)Two thresholds exist in the process of transition of habitat quality dynamics from unsuitable to suitable, which include the intensity of niche construction and the initial condition of system.(15)Metapopulation size is positive correlated with the ability of positive niche construction, which means that organism or population who has strongly positive influences on their environment plays an important role to maintain the available habitat.
通过上述几个方面的研究,主要得出以下15条结论:(1)生态位构建可使空间结构种群,甚至是在没有杂合子优势的条件下,形成多种可能的稳定基因型分布模式;(2)随着环境的破坏与恶化,种群的生态位构建作用加速其较早形成稳定多态以阻碍环境对种群的不利影响,解释了有机体在不利环境下的一种生活史对策;(3)生态位构建作用通过基因型—环境反馈机制及有限的基因交流导致基因型多态的稳定共存;(4)有机体的生态位构建作用是一种积极的动力改变环境进而改变其自然选择的方向;(5)生态位构建的时滞作用对集合种群动态和空间分布产生深刻影响;(6)集合种群大小在时滞的崭新效应和等权重效应下达到一固定值,而在首位效应下达到统计稳定,表明首位效应的影响最显著;(7)首位效应下生态位构建相对权重的增量和时滞的长度是影响系统不稳定性动态的关键因素;(8)适中的生态位构建强度有利于集合种群的续存;(9)生态位宽度变窄会减少集合种群的数量从而增加其灭绝风险;(10)时滞和生态位构建的双重作用使系统产生周期振荡,并在异质性环境中产生稳定的螺旋波,破碎的螺旋波和环形波三种分布模式;(11)集合种群与资源含量的空间分布因为相滞而互补;(12)具有生态位构建的集合种群续存不仅取决于侵占率与灭绝率之间的平衡,而且依赖于生态位构建能力同其生境的自然消耗速率之间的妥协;(13)当生境中适合侵占的斑块比例小于其侵占率与灭绝率之比时,生态位构建作用促使集合种群在一定条件下续存:(14)生境斑块的状态从不适合到适合转变过程中存在生态位构建强度和系统初始条件这两个阈值;(15)集合种群的大小同正生态位构建能力正相关,意味着对环境具有较强正作用的有机体对维持有效生境起积极作用。
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Further more,many people who have no civism throw the garbage everywhere and thus polluted the lake and river.
近年来,由于车辆和工厂不断增加,空气和生活品质也不断恶化。此外,许多人缺乏公德,乱丢垃圾,以致污染了湖泊和河流。
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Last year's heavy flooding in the North, made worse by the population's clear-cutting of mountains for food and fuel, has severely impacted this year's harvest.
去年北韩发生严重水灾,北韩人为种粮食和获取燃料而将山上的树木全部伐光,使灾情进一步恶化,严重影响了今年的收成。
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Last years heavy flooding in the North, made worse by the populations clear-cutting of mountains for food and fuel, has severely impacted this years harvest.
去年北韩发生严重水灾,北韩人为种粮食和获取燃料而将山上的树木全部伐光,使灾情进一步恶化,严重影响了今年的收成。
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In recent years,with the environment getting worse and worse,we human pay more attention to climatic and environmental changes,thereby research variety of related problems of them.
近年来,随着环境的日益恶化,人们对当今气候环境的变化日益重视,从而相关问题的研究也越来越多。
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Urban activities of human beings make the local climate change therefore deteriorate the entironment. The UHI effect [3] was discovered by climatologist in early nineteenth century.
人类的城市活动改变了局部气候,使得生态环境恶化。19世纪初期气候学家发现了城市热岛(Urban Heat Island,UHI)现象[3]。
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As a result of rapid development of city's industrialization in Shanghai whereas the lag of industrial and domestic sewage's disposal and the building progess of city's cloaca,most of rivers was polluted badly.
由于上海市工业化和城市化的迅速发展,雨污分流与污水处理的建设和发展相对滞后,致使大量工业废水和生活污水直接排入河道,河道水质严重恶化。
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as a result of rapid development of city's industrialization in shanghai whereas the lag of industrial and domestic sewage's disposal and the building progess of city's cloaca,most of rivers was polluted badly.there are diversiform measures including biotechnologics for improving the water quality in shanghai.in this paper,the biotechnologic repairing's basic theory,effect,history,and application in the current world is expatiated.furthermore,a project sample which was put into practice in minghang district showed the feasibility and the actual effect of such technology in shanghai's water quality repairing.
由于上海市工业化和城市化的迅速发展,雨污分流与污水处理的建设和发展相对滞后,致使大量工业废水和生活污水直接排入河道,河道水质严重恶化。为改善上海河道水质,人们采取了多种措施,其中就包括采用生物技术修复河道水质的措施。本文浅要介绍了采用生物技术修复河道水质的原理、效果以及这种技术的发展简史、在国际上的应用现状,并以闵行区已经开展的邱泾河原位生物修复工程为例说明这种技术在上海市水质修复应用的可行性和实际效果。
- 推荐网络例句
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The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.
主要做了如下几个方面的工作:对伸臂位于顶部的单层框架—筒体模型进行分析,提出了等效转动约束的概念和转动约束刚度的表达式。
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Male cats normally do not need aftercare with the exception of the night after the anesthetic.
男猫通常不需要善后除了晚上的麻醉。
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Its advantage is that it can be used in smaller units.
其优点在于可以在较小的单位中应用。