查询词典 unfavorable

Comprehensive and unfavorable factors to bear the brunt of the sharp decline in demand is.

全面和不利因素，承担的需求急剧下降，首当其冲的。

The retail behemoth is regularly the target of unfavorable billboards, newspaper ads and at least one critical documentary.

零售巨头是定期的目标不利的广告牌，报纸广告和至少一个关键的纪录片。

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。

With the rapid development of our country"s transportation and the implementation of the state"s the policy of the Great Development of the Western Regions, a great many tunnels will be built in elevations areas or circumpolar areas in the Big West. Compared with traditional tunnels in the cold area, these tunnels will take large size and require higher technology. Moreover, the extreme climatic conditions are very unfavorable for these tunnels.

随着我国交通事业的快速发展，特别是西部大开发和振兴东北经济政策的进一步落实，在西部的高海拔和北部的高纬度寒冷地区将陆续有大量的隧道建成，与以往寒冷地区的隧道相比，这些隧道的规模会更大、技术要求更高，而气候条件却更加恶劣。

Strengthens an activity, unfavorable and sedentary, congest in order to reduce perineal ministry

加强活动，不宜久坐，以减少会阴部充血

Flange height and lip thickness are limited to the drawing ratio of the sheet metal in the convectional hole flanging process. Necking or fracture tends to occur before the required flange height being achieved which is unfavorable for subsequent assembly operations.

般金属板材在进行孔凸缘冲压成形时，凸缘高度和轴壁厚度通常受材料伸长率的限制，往往在未达所需凸缘高度前，板材即发生颈缩或破裂的现象，不利后续组装加工。

The written decision may later be published in a court reporter so that others can read the decision, cite it as precedent, and urge lower courts to follow the ruling or find a way to distinguish the case if the result is unfavorable to a certain party.

此书面决议将在法庭案例上出版以便其他人能阅读此案例，并作为先例引用它。同时促使下级法院遵循判决或者当结果对一方不利是找到区别案例的方法。

The innovation ability of university of our country is weak at present, one important reason is that influenced by the coxcombry culture "obtain the achievements in its post fast" from the society; the prevailing of coxcombry culture of the university is unfavorable to the innovation.

目前我国大学的创新能力弱，一个重要原因是受社会上"快速出政绩"的浮夸文化影响，大学浮夸文化盛行，不利于创新。

This paper also analyzes the unfavorable influence on loaded force of web from consortion, creepage and prestress as well as provides relative measures and design suggestions.

在此基础上，本文还浅析了扭转、徐变及预应力等对腹板受力的不利影响，并提出了相应的措施及设计建议。

The FE model of the composite crunode was built through the FE program ANSYS,then the bearing capacity of the crunode was analyzed under the condition of unfavorable loading,and the parametric analysis was conducted.

通过有限元通用程序ANSYS建立该结点的有限元模型，研究在最不利荷载情况下的结点受力性能及结点参数对受力性能的影响，并进行了结点模型试验。

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。