查询词典 at length
- 与 at length 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Inflorescence a terminal spike on pseudostems or on separate shoots arising from rhizomes, sometimes appearing before leaves; peduncle erect; bracts connate for ca. 1/2 their length and forming pouches, spreading at free ends, each subtending a cincinnus of 2--7 flowers, apical bracts often differently colored, large, sterile, forming a coma; bracteoles free to base.
顶生穗状花序生假茎或独立的由根状茎生的嫩枝,有时出现在叶之前;花序梗直立;苞片合生约1/2的其长度和形成小袋,小苞片离生至基部。
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At specific milestones in your program, you will attend two colloquia, each five days in length.
在程序中的具体里程碑,你将参加两个座谈会,长度均为5天。
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At specific milestones in your program, you will attend three colloquia, each five days in length.
在程序中的具体里程碑,你将参加三个座谈会,长度均为5天。
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This dissertation investigates the construction of pseudo-random sequences (pseudo-random numbers) from elliptic curves and mainly analyzes their cryptographic properties by using exponential sums over rational points along elliptic curves. The main results are as follows:(1) The uniform distribution of the elliptic curve linear congruential generator is discussed and the lower bound of its nonlinear complexity is given.(2) Two large families of binary sequences are constructed from elliptic curves. The well distribution measure and the correlation measure of order k of the resulting sequences are studied. The results indicate that they are "good" binary sequences which give a positive answer to a conjecture proposed by Goubin et al.(3) A kind of binary sequences from an elliptic curve and its twisted curves over a prime field F_p. The length of the sequences is 4p. The "1" and "0" occur almost the same times. The linear complexity is at least one-fourth the period.(4) The exponential sums over rational points along elliptic curves over ring Z_ are estimated and are used to estimate the well distribution measure and the correlation measure of order k of a family of binary sequences from elliptic curves over ring Z_.(5) The correlation of the elliptic curve power number generator is given. It is proved that the sequences produced by the elliptic curve quadratic generator are asymptotically uniformly distributed.(6) The uniform distribution of the elliptic curve subset sum generator is considered.(7) We apply the linear feedback shift register over elliptic curves to produce sequences with long periods. The distribution and the linear complexity of the resulting sequences are also considered.
本文研究利用椭圆曲线构造的伪随机序列,主要利用有限域上椭圆曲线有理点群的指数和估计讨论椭圆曲线序列的密码性质——分布、相关性、线性复杂度等,得到如下主要结果:(1)系统讨论椭圆曲线-线性同余序列的一致分布性质,即该类序列是渐近一致分布的,并给出了它的非线性复杂度下界;(2)讨论两类由椭圆曲线构造的二元序列的&良性&分布与高阶相关性(correlation of order κ),这两类序列具有&优&的密码性质,也正面回答了Goubin等提出的公开问题;(3)利用椭圆曲线及其挠曲线构造一类二元序列,其周期为4p(其中椭圆曲线定义在有限域F_p上),0-1分布基本平衡,线性复杂度至少为周期的四分之一;(4)讨论了剩余类环Z_上的椭圆曲线的有理点的分布估计,并用于分析一类由剩余类环Z_上椭圆曲线构造的二元序列的伪随机性;(5)讨论椭圆曲线-幂生成器序列的相关性及椭圆曲线-二次生成器序列的一致分布;(6)讨论椭圆曲线-子集和序列的一致分布;(7)讨论椭圆曲线上的线性反馈移位寄存器序列的分布,线性复杂度等性质。
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At time of 5mm length of alabatrum, the miosis in microsporecyte and the sex differentiation was found, thus in female flowers, pollen mother cell showed a abnormal meiose then the pollen cells gradually disintegrated, final, contabescence had taken, and in male flowers, the stamen normally developed.
在幼蕾长到5mm左右,即花粉母细胞开始减数分裂时,出现花性别的分化,雌花中雄蕊花粉母细胞不能进行正常减数分裂,进而花粉细胞逐步解体而导致雄蕊败育;雄花中雄蕊发育正常至性成熟。
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Then, anastomose extensor indicis proprius having vessel with distal branch proximal, anastomose deltal distal postenior interosseous having vessel with ulnar nerve deep branch through tunnal at fore-arm, Cutting self skin nerve for right length, anatomose distal posterior interosseous distant part with thenar branch through skin nerve cutted.
用带血管蒂的示指固有伸肌支与终末支近端吻合,将带血管蒂的骨间后神经终末支通过隧道在前臂掌侧与尺神经深支直接吻合;切取自体皮神经合适长度,将骨间后神经终末支远端通过切取的皮神经与鱼际肌支相吻合。
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Template-confined growth is a very powerful method for obtaining aligned 1D nanomaterials with adjustable diameter, length and morphology. Porous anodic aluminum oxide templates with different channel structures have been synthesized in our lab, with which the aligned CNT arrays, Y-branching and novel dendriform CNTs have been obtained. Based on the structural characterization of the products, a space-limited and self-catalytic growth mechanism has been proposed accordingly. Roughly speaking, the catalyst particles at the bottom of template channels initiate the nucleation of carbon species, which acts as the seed for subsequent CNT growth.
本文采用近年发展起来的模板控制生长法,以多孔氧化铝模板控制CVD生长的方法调控了碳纳米管有序阵列、γ-分叉及树枝状分叉结构,在对产物进行详尽结构表征和分析的基础上阐述了氧化铝模板控制生长碳纳米管的生长机制:孔道内催化剂仅在生长初始阶段催化碳物种的成核,起&种子&作用,随后模板孔道自身的催化及限域作用使碳纳米管紧贴着孔道内壁生长。
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I fell very happy.because I think it is length recollection in life , it is very commonness . If you dispend different foresight to behold it, you will have dissimilar attitude. taste life at pains .
因为我觉得这也是人生一段回忆,它很平凡,如果你用不同的眼光去看它,你会有不同的看法,要用心去品味生活
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The results show that, firstly, Stellera chamaejasme L, which rely on their developed axial root system in the 10~40cm soil layer to occupy the competitive priority of volume, length, surface area and so on, in the case of their adaptive faculty to poor surroundings resulting from fruit picking, trampling and overgrazing as well as with the phenomenon of restrained growth among various plants, gradually become the dominant plant in the herbaceous community; secondly, this kind of degraded grassland has not displayed any general characteristic of degradation such as surface exposure, accumulative quantity of vegetation reduced, water loss, soil erosion and so on, therefor, it should be dealt with distinguishingly; thirdly, if"Stellera chamaejasme L Killer"and"Oxytropis ochrocephala Killer"invented by CAS are taken advantage of respectively in the bloom period of Stellera chamaejasme L and at the beginning of florescence of Oxytropis ochrocephala bunge by ultra-low volume spray of 1. 05L/hm〓 and 1. 35~165L/hm〓 dosage separately, the death rates of poisonous herbs may achieve above 95% and 92% correspondently; fourthly, this technology with the characteristics of high work efficiency, exclusive selectivity and convenient operation, is safe to non-target plants and other animals, and has no toxic or side-effect to environment; furthermore, an execution of"Stellera chamaejasme L Killer"spray and a two-year grazing prohibition can be effectively applied on degraded grasslands of"Weed and Poisonous plants Type".
结果表明:狼毒凭借发达的轴根系在10~40cm土层中形成的体积、长度、表面积等竞争优势,以及对采食、践踏、过度放牧所形成的不良环境的适应能力和异株克生现象的存在,逐步成为草群中的优势植物;毒杂草型退化草地没有表现出地表裸露、植物蓄积量减少、水土流失等一般性退化特征,对该类草地的治理应区别对待;应用中科院研制的'灭狼毒'和'灭棘豆'分别在狼毒盛花期和黄花棘豆初花期,以1.05L/hm〓、1.35~165L/hm〓的施用量超低容量喷雾,毒草的死亡率可达到95%、92%以上;该技术具有工效高、选择性专一、灭效高、操作简便,对非靶标植物和其它动物安全,对环境无毒副作用的特点;采用喷施'灭狼毒'+短期禁牧措施,可以有效治理毒杂草型退化草地。
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Doline visual depth at the position seems to tens of meters, the rope length should be enough!...
天坑在这个位置上目测深度好象就几十米,绳索长度应该是够了!。。。
- 相关中文对照歌词
- At Arms' Length
- 推荐网络例句
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Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.
在对危险的南部地区访问时,他斥责什叶派民兵领导人对中央集权的挑衅行为。
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In fact,I've got him on the satellite mobile right now.
实际上 我们已接通卫星可视电话了
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The enrich the peopling of Deng Xiaoping of century great person thought, it is the main component in system of theory of Deng Xiaoping economy, it is a when our country economy builds basic task important facet.
世纪伟人邓小平的富民思想,是邓小平经济理论体系中的重要组成部分,是我国经济建设根本任务的一个重要方面。