查询词典 at intervals

Meanwhile, it could be seen that there does not exist a confidence interval with width less than 0.5 because of the property of Poisson distribution. Based on these conditions, the author mainly carried out research into two aspects of this problem as follows. Firstly, by numerical and theoretical analysis, the author compares some existent confidence intervals, for example,"exact" confidence interval, Wald confidence interval and Bayesian confidence interval, and finds some deficiencies points of the confidence intervals, whose modification version has been proposed .Also, several better confidence intervals such asare also presented .Secondly, for given confidence coefficient and interval width, the author constructs a class of asymptotical two-stage interval estimate procedures. At the same time, under varies restriction of confidence coefflcientent interval width, the optional sample size of the first stage has been computed by numerical computation. The numerical computation shows that the method considered in this dissertation have good properties and applied value.

同时，由于Poisson分布的特性，我们知道不存在其参数区间长度小于0.5的置信区间，基于这些情况，我们主要展开了以下两个方面的研究：一是利用数值计算分析与理论分析的方法对现有的若干置信区间如"精确"置信区间，Wald置信区间，Bayes置信区间等进行分析比较，发现了一些缺陷，针对这些缺陷，我们进行适当的修正，并得到几种性质较好的置信区间如：修正大样本区间Jeffreys原则下置信区间二是针对已给定的置信系数与区间长度，我们提出了一种渐近的两阶段区间估计程序，并利用数值计算的方法，在各种置信系数与区间长度限定下，算出了最优的第一阶段观测次数，大量数据表明，本文考虑的方法性态良好，具有应用价值。

No,' she repeated, and continued sauntering on, pausing, at intervals, to muse over a bit of moss, or a tuft of blanched grass, or a fungus spreading its bright orange among the heaps of brown foliage; and, ever and anon, her hand was lifted to her averted face.

&不，&她又说，继续向前闲荡着，间或停下来，望着一点青苔，或一丛变白的草，或是在棕黄色的成堆的叶子中间散布着鲜艳的橘黄色的菌沉思着，时不时地，她的手总是抬起到她那扭转过去的脸上去。

Lampposts stand at intervals in the street.

这条街上隔一段距离就有一支路灯柱。

"By the late 14th century, the Perpendicular style replaced curvilinear tracery with straight mullions extending to the top of the main arch, connected at intervals by horizontal bars."

到14世纪末，垂直式风格建筑采用延展至主要拱形顶端的直线棂条来代替曲线花格，中间有横向的棂条相连。

Tollbooths 收费亭 Heavily-traveled toll roads such as the Garden State Parkway, Interstate 95, and so forth, are multi-lane divided highways that are interrupted at intervals by toll plazas.

像Garden State Parkway，Interstate 95等等这样的长途收费公路，通常是多车道的，被分成几条高速公路，在这些高速公路上每隔一定的间隔会设立一个收费区。

General observation were conducted after injection.The animals were sacrified at intervals from one hour to 63 days after implantation and the brain examined by pathology and immunohistochemistry and tumor size measured.

接种后观察不同实验鼠的生存情况，分别于接种后1 h至63 d的不同时间进行裸鼠脑肿瘤组织病理学检查和免疫组织化学分析。

There were a number of carved stone figures placed at intervals along the parapets of the old Cathedral; some of them represented angels, others kings and bishops, and nearly all were in attitudes of pious exaltation and composure.

古老的天主教堂矮墙边还散落着一些石像。有些是天使，有些是国王和主教，几乎所有的石像都是面带着虔诚的喜悦或者庄严。

Transsphenoidal microsurgical removal of pituitary ACTH adenoma is the first choice in prevention and treatment of Nelsons syndrome. Follow-up examinations should be repeated at intervals.

经蝶窦垂体ACTH腺瘤切除是预防和治疗Nelson综合征的首选方法，术后应定期随访。

"Measure gradient at 5m intervals by using the abney level in combination with a supporting frame. For uneven slope s, measure at 1 m intervals."

用量角仪连同支架作为工具，沿样条每5米量度一次陡度；在陡度变化大的地区，可每米量度一次。

Under Louis XI., this sea of houses was seen to be pierced at intervals by several groups of ruined towers, from the ancient wall, like the summits of hills in an inundation,--like archipelagos of the old Paris submerged beneath the new.

在路易十一时代，随处可见在这片房屋海洋中有旧城廓若干正在坍塌的钟楼群露了出来，好比是洪水中冒出水面来的山巅，也仿佛是淹没在新巴黎城中的老巴黎城露出来的若干群岛。

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。