查询词典 average number

Since then, the number of new users registering to contribute to the site has exceeded 1,200 a day, up from an average of 300 to 400 prior to the unblocking.

几天来，在中文网站上注册的、准备为网站贡献内容的新用户数量每天超过了1，200人，远远高于网站被解禁前每天平均300-400人的水平。

Elements are normally reached, on average , in a logarithmic number of link traversals.

使用线性列表的二进制树的一个关键性质是元素只需要链接横向搜索数目为对数个。

Radiological studies using this facility found that only 20%of irradiated cells were killed by a single particle, and the dose response curve for nuclear irradiation with exact number of particles was not significantly different from the curve obtained using average particle traversals of broad-field exposure.

应用该微束装置的放射生物学研究发现单个α粒子仅导致大约20％的致死率，其存活率曲线类似于用常规照射获得的平均粒子存活曲线。

As the concentration of potassium oxalate increases from 0.3 mmol/L to 5.0 mmol/L, the patterns of the COM crystals change from a solid circle to a ring-shape, the number of patterns increases and the average diameter of the patterns decreases.

当 c (K2C2O4)为0.3 mmol/L时，主要诱导实心的圆形堆积的COM晶体图形，而当 c (K2C2O4)增加至5.0 mmol/L时，生成圈状COM晶体图形，且图形的半径减小。

With analysing the the fatigue mechanism, the general mode of interply fatigue damage propagation is denoted by delamination length and crack density. Based on the power-law, the relationship between number of cycles and delamination length and crack density are established. The specimen is modeled as an equivalent six-ply material system. Starting with the analysis of interply stress, the interply shear stress under cyclic loading is calculated by using nonlinear three-demension FEA. According to the stage regularity of fatigue damage propagation, such models as average strain, effective modulus, ratio of delamination length and crack density, experimental relationship between crack density and effective modulus, are proposed by introducing subsection coefficient.

通过对疲劳机理的分析，确定了以脱层长度和裂纹密度表示的层间疲劳损伤演化的一般模式，利用指数法则建立了脱层长度和裂纹密度随疲劳循环周次变化的关系；从层间应力分析入手，以等效六层的材料模型对循环载荷下的层间剪切应力进行了三维非线性有限元分析；根据疲劳损伤扩展的阶段性，引入分段系数，分别建立了平均应变与载荷循环周次的分段线性模拟模型、有效刚度随载荷循环周次的变化关系模型、裂纹密度变化和脱层长度变化关系随载荷循环周次变化的分段线性模型以及疲劳裂纹密度和有效刚度关系的经验模型。

So what then if NBS' number crunchers have found an extra $113.8 billion-worth of goods and services in 2007, raising the overall output to $3.76 trillion compared to Germany's $3.32 trillion, based on that year's average exchange rate. It just emphasises the scale and speed of the slowdown.

那么接下来如果国家标准局的那些对数字很在行的人发现在2007年有一项额外的价值1138亿美元的货物和服务，且因此才将GDP增加至三万七千六百亿美元，并且根据当年的平均汇率，超过了德国的三万三千两百亿美元，这只是强调了经济衰退的范围有限和速度减缓。

The proposed algorithm comprehensively considers the effects of local area average brightness of the background and space complexity on visual resolution. In order to judge whether the variance of gray is effectively percepted or not, the just noticeable difference is derived. The changes in the number of perceptible pixels between the original image and the enhanced image can be calculated by use of JND parameter. Thus quantitative results to assess the quality of enhanced images are obtained.

算法综合考虑图像局部区域的背景平均亮度和空间复杂度对视觉分辨力的影响，导出了用于判断局部灰度级跃变是否被有效感知的重要参数―临界可见偏差JND，并利用此参数分别计算出图像增强前后有效感知像素数的变化情况，从而定量地给出图像增强质量的评价结果。

In order to decrease energy consumption and load fluctuation acting on the cutting head of roadheader, pick arrangement and kinematic parameters of cutting head are optimized based on the optimization strategy of average load of every pick and number of picks cutting simultaneously.

针对掘进机截割头载荷波动和能耗问题，基于各截齿受力均匀和同时参与截割的截齿数保持恒定的优化策略，对截齿排列参数和截割头运动参数进行了多目标优化设计。

But more surprising miracle is,however, not the majestic pyramids of Khufu posture, but the number of "coincidences": people now know,the distance from the Earth to the sunis 146.24 million km, and the average distance between the Sun is 146590000 km, being a unit of astronomical measurement; If the current height of the pyramid of Khufu 146.59 meters get multiplied by the billions, the result is exactly 146,590,000 kilometers!

但更为令人吃惊的奇迹，并不是胡夫金字塔的庞大，而是发生在胡夫金字塔上的数字&巧合&：人们到现在已经知道，从地球到太阳的距离，也就在14624万公里到15136万公里之间，而人们将地球与太阳之间的平均距离14659万公里作为一个天文度量单位；如果把胡夫金字塔的高度146.59米乘以十亿，其结果正好是14659万。

"We expect the average unit cost of the F-35 to be far below that number," Christian Geisel, a company spokesman said, replying in an email.

Christian Geisel是该公司一位发言人，他在一份电子邮件上回应说：&我们预计F-35 的单机造价会远远低于上述数字。&

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。