查询词典 extinction

The centerpiece of Japan's Expo showcase is an opera about a rare bird that avoided extinction in Japan with the help of China.

日本的核心展品是一部歌剧。歌剧的内容是，在中国的帮助下，日本拯救了一种濒临灭绝的鸟。

Above-water remote sensing reflectance and scattering extinction coefficients of water were derived by modeling radiative transfer across the water-air interface with in situ measured water quality data and beneath water spectral reflectance measurements in Lake Tai.

利用太湖水质参数数据、水面以下实测光谱数据以及水-气界面辐射传输模型，计算得到了水体漫射衰减系数和水面以上遥感反射比，探讨了悬浮物对水体中营养盐以及水下光照等水体环境因子的影响，在此基础上，利用水面以上遥感反射率建立了悬浮物浓度的定量反演模型。

These results suggest that morphine withdrawal selectively impairs the cued fear extinction through inhibiting the ERK phosphorylation in the amygdale and mPFC. Histamine deficiency not only enhances acquisition the cued and contextual fear conditioning and but also potentiates the impairment of extinction of cued fear memory.

这些结果提示：吗啡戒断能选择性抑制恐惧记忆的消除，此作用是通过抑制杏仁核和mPFC脑区内ERK蛋白磷酸化来实现的；组胺缺乏能增强线索和背景恐惧记忆的获得以及增强吗啡戒断对线索恐惧记忆消除的抑制作用。

Due to the fact that creation is premised on the idea of extinction, the extinction clues are inherent in the creation itself.

由于创造是由灭绝这个思想来作为前提的，灭绝的线索对于创造本身来说是固有的。

Results ① IVIG group was significantly shorter than conventional therapy group in extinction time of rash,joint symptom,abdominal pain and length of stay(all P＜0.01);② Comparing IVIG group with corticoid group respectively,significant difference in extinction time of rash and length of stay were found(both P＜0.01);Using gammaglobulin,rash disappeared faster and length of stay reduced significantly.

结果 ①丙球治疗组在皮疹、腹痛、关节症状消失时间及住院时间均显著短于常规对照组(P＜0.01)；②丙球治疗组与激素治疗组相比，在皮疹消退及住院天数上差异有统计学意义(P＜0.01)。

So the infrared radiation energy is extincted. The quantity of extinction can be described by the extinction coefficient.

大气对红外辐射的衰减程度可以用消光系数来描述，波长不同，消光系数也不同。

To make a comprehensive view of metapopulation researches, we folly analyze and summarize the present concepts, theories and models of metapopulation in this paper, which primarily includes the dynamical models and simulation approaches of single and competitive metapopulations. Based on the Levin's patch occupant model, the center framework of metapopulation researches, primary principles and mechanisms are discussed. First, Levins rule: the fraction of empty patch will remain constant with habitat destruction as long as metapopulation survives. This rule implies that empty patches have determinant effects on persistence and conservation. Second. Allee effect of metapopulation is incurred by establishing difficulties and dispersal costs, which is important to the studies of reserve area and the minimum available metapopulation size. Third, we analyze the rescue effect that immigrants can reduce the extinction risk of the presented local population. Rescue effect can leads to the improvement of metapopulation sustainability and the decrease of fraction of empty patches. Fourth, the coexistence mechanism of two competing metapopulation is discussed, which suggests that competition-colonization trade off may be prevalent in competing systems. Finally, extinction debt ob tamed from coexistence mechanism is given, which depicts the lost of species richness in the future for the current habitat destruction. After theoretical discussion, we present two popular simulated approaches in metapopulations: probability transition model and stochastic process model.

为了能总观集合种群进展的全局并开展进一步的工作，首先对集合种群的已有概念、理论和模型做了全面的分析和总结；其次对集合种群的发展和概念进行了探讨，以集合种群模型的中心框架：Levins的斑块占据模型为基础，展开对其它原理、效应和机制的探讨；主要包括了Levins原理，即当生境进到破坏时，空斑块比例在集合种群灭绝前保持不变，然后还分析了Allee效应（集合种群的Allee效应主要是由于建群困难和扩散损失造成的）；第三，分析了援救效应：迁人个体可以降低斑块中现有局域种群的灭绝风险，援救效应会增强集合种群的生存力，使空斑块比例下降第四，探讨了两竞争集合种群的共存机制，即竞争－侵占妥协，其共存机制为空间生境中物种共存提供了有力的理论解释。

All methods of secondary arc extinction are directed toward reducing the magnitude of secondary arc current and recovery voltage, which in turn will reduce the extinction time of the arc and assure successful single-pole autoreclosure .

所有的用于熄灭潜供电弧的方法均可归结到降低潜供电流和恢复电压的幅值，进而减少电弧燃烧时间，保证单相自动重合闸的成功。

With the acceleration of extinction of species, biodiversity conservation is extensively concerned. The extinction of species is concerned with the degree of threat by biotic and abiotic factors.

一个物种的灭绝是与其受生物因子和非生物因子的威胁程度相关的。

For this reason, the "mathematical artefacts" of extinction estimates were not sufficient to be certain about the current state of extinction, said MacLeod.

&为此，灭绝估计的数学假象是不足以确定目前的物种灭绝形势的。&麦克劳德说。

The big eared hedgehog, the little owl, the sand gecko, the three-toed jerboa, and every show needs a villain - saw-scale - the viper!

大耳刺猬，小猫头鹰，沙壁虎，三趾跳鼠，每场戏都需要反派角色：蝰蛇。

Plasmodiophora brassicae ; resting spores ; density gradient centrifugation of sucrose ; ultrasonic disruption

根肿；休眠孢子；蔗糖密度梯度离心；超声波破碎