查询词典 local minimum

The supercooling points of adult were all lower than local mean minimum temperatures, can overwinter safely.

各种群的过冷却点都低于当地各月平均温度，越冬成虫可以保持较高的越冬存活率。

There is much noise in the state of eyes opening unforcedly, so the noise processing is necessary, the upper and lower eyelids are removed by parabola fitting, the facular is removed by neighboring gray average, the eyelashes are removed by finding all the candidate eyelashes by local gray minimum firstly, then the false eyelashes are removed by the beginning location, directional and length information of the eyelashes.

在人眼自然睁开状态下存在噪声，因此需要进行去噪操作：通过抛物线拟合的方法去除上、下眼睑；利用邻域灰度均值法去除光斑；去除眼睫毛时先用局部灰度极小值的方法找到所有候选眼睫毛点，然后利用眼睫毛的起始信息、方向信息和长度信息去除伪眼睫毛点。

After repeated studies, we found that gradient vector flow deformable model is robust to model initialization and not stagnant by local energy minimum, but still is difficult to handle boundary concavities. Thus, we develop a modified technique to overcome this drawback. This technique makes active contour further progress into concavities.

经过反覆实作，我们发现GVF较不受模型初始值之影响，而且不会因局部极小能量而停滞，然而此法仍难以进入凹陷处，因此我们也研发了一种改良技术来克服这个缺点。

Actually in order to ensure the minimum wages, many poverty-stricken areas' government connives with the local enterprises to devastatingly exploit the environment, which has caused serious environmental consequence.

事实上，在不少贫困地区，为了发展地方经济，甚至可能只是为了最基本的工资保障，地方政府不得不&默许&或者纵容地方企业对自然资源的破坏性开发行为，造成严重的生态环境后果。

A high-speed digital-to-analog converter measurement method acquires and quantizes an analog ramp output by the DAC corresponding to a digital ramp input to produce a quantized ramp, determines a start and end of the quantized ramp, obtains a difference between the quantized ramp and an ideal ramp to produce a quantized periodic signal, determines a frequency for a qualified peak from an FFT of the quantized periodic signal, produces a mask filtered periodic signal from an iFFT around the qualified peak, and determines a sample window spanning a local maximum and minimum for each period of the quantized periodic signal.

一种高速模拟数字转换器测量方法，采集和量化由DAC输出的相应于数字斜坡输入的模拟斜坡以产生量化的斜坡，确定量化的斜坡的开始和结束，获得量化的斜坡和理想的斜坡之间的差值以产生量化的周期信号，从量化的周期信号的FFT中确定合格峰值的频率，从合格峰值周围的iFFT中产生屏蔽过滤的周期信号，并且在量化的周期信号的每一周期内确定跨越局部最大值和最小值的采样窗口。

Disk rotation balance week, will go to a certain point of view, the local emergence of the greatest axial clearance or minimum clearance space.

平衡盘转动一周，会在转到某一角度时，局部出现轴向间隙的最大间隙或最小间隙。

Minimum 7 years experience in related field (pump and drainage, HAVC, power generation/transmission ); 2 years of working in local design institution

7年左右相关领域工作经验，两年以上大型甲级设计院相关设计经验，同时了解强、弱电的基本原理和设计流程

For the coarsest scale there are fewer local minima and further apart from each other. Thus, at the coarsest scale linearized methods can get closer to the neighborhood of the global minimum, and its final result is implemented as an initial model of the inverse problem of the second coarsest scale.

大尺度上反问题的目标函数局部极小少而且互相分得很开，因而用常规的反演方法可以较容易地收敛到全局极小的邻域内；将大尺度的解当作次一级尺度反问题的初始模型，再进行反演。

The results show that single structure parameters (width and depth of flow path/passage, and height, and angle of dentations) are local and difficult to represent the anti-clogging ability of emitters. Characteristic structure parameters(minimum size of cross section, hydraulic radius and dentitions spacing) can represent the anti-clogging ability of emitters in a sense. There are anti-clogging critical values under the test. Rated flow Qr and the ratio of diameter of labyrinth passage to diameter of particle η are well cor related to the anti-clogging ability and have anti-clogging critical values too.

结果表明：用单一结构参数(流道宽度 W 、流道深度 D 、齿高度 h 和齿角度θ)表征其抗堵塞性能存在局限性；结构特征参数断面最小尺寸 min(D，W、水力半径 R 和齿间距 l 能较好反映滴头流道横、纵断面的结构特征，在不同程度上表征了流道的抗堵塞性能，且在试验条件下各自均存在抗堵塞临界值；滴头额定流量 Qr 和迷宫滴头径粒比η与抗堵塞性能相关性较好，且存在抗堵塞临界值。

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。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。