查询词典 harmful

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。

Index of circulation in EVH group can maintain stable,but should guard against harmful effects on supply and demand equilibrium of oxygen by hypercapnia.

EVH组循环指标能够维持稳定，应防范高碳酸血症对氧供需平衡的不良影响。

"It should be argued that long-lasting and repeated exposure to EMFs linked with intense use of cellular phones in daily life might be harmful or beneficial in brain-diseased subjects," they wrote."Further studies are needed to better circumstantiate these conditions and to provide safe rules for the use of this increasingly more widespread device."

他们在报告中称："长期、反复暴露于与日常生活中频繁使用手机紧密相关的电磁波中，可能会对大脑疾病患者产生有害或者有益的影响，但这需要进一步的研究，以便更好地对这些条件加以论证，并为这一愈来愈广泛使用的工具提供安全规则。"

Atonement for a wrong done to another person involves, so Richard Swinburne argues in Responsibility and Atonement (Clarendon Press, 1989), repentance, apology, reparation and penance, which together aim to remove, so far as possible, an action's malevolence and harmful results.

人赎罪的错误进行到另一个涉及，因此理查德斯温伯恩认为在责任和赎罪（Clarendon出版社，1989），忏悔，道歉，赔偿和忏悔，它们共同的强标是消除，只要可能，操作的恶意和有害的结果。

Cleanout and preventing rust are very well,furthermore,this product has a long period of usage(40 days),harmful not to skin and protects environment.

对轴承磨加工工序所用的切削液进行分析研究，并选出 JT-1合成切削液进行试验，该切削液具有良好的润滑性、冷却性、清洗性、防锈性，而且使用周期长(40天)，不刺激皮肤，属于环保型产品。

Because of all the smokers are easily smoking in the closed-door in the winter , which is extremely harmful.

因为冬天大家容易在门窗紧闭室内吸烟，这样是极为不好的。

We've always known that coca isn't harmful.

我们一直都知道，古柯并不是有害的。

In animal's large intestine, the bile acid can suppress the backwoods coli, the chain coccus and other harmful bacterium's multiplication.

在动物的大肠中，胆汁酸能够抑制大肠杆菌，链球菌及其它有害细菌的增殖。

The product selects high quality cocoanut in the equator as carrier, goes through strict exquisite processing technology, such as high temperature carbonization, nano-compounding, bio-activation and so on. It focuses on adsorbing toxic and harmful gas molecular such as formaldehyde, benzene series, ammonia

本品精选赤道地区优质椰壳为载体，经高温炭化、纳米复合、生物活化等系列严格工艺精细加工而成，专业用于吸附分解甲醛、苯系物、氨、TVOC等有毒有害气体分子，以及各类异味、臭味的祛除，同时具有防潮、抗菌作用。

In people with coeliac disease, the body treats gluten as harmful and attacks it, so that the lining of the small intestine is damaged.

在人与腹腔疾病，身体对待面筋有害的和攻击，使衬砌的小肠被损坏。

We are forbidden from giving money to these shoeless, skinny children, as this will perpetuate begging.

向光着脚，骨瘦如柴的孩子施舍是不可以的，因为要招来无休无止的乞讨。

It would be hard not to fall victim to some sharpeyed policeman.

要想不被某个目光锐利的警察抓到，谈何容易。