查询词典 averaging

The local averaging method is used to discretize the random field, correlated random variables are transformed to a set of uncorrelated normalized random variables, combining viscoelastic stochastic finite element method with H-L algorithm, the reliability of solid propellant grain is studied with different random parameters.

为了讨论各类随机因素对药柱结构可靠性的影响，采用局部平均法离散参数随机场，并通过相关结构分解成归一化的独立随机变量，将可靠度指标算法和粘弹性随机有限元法相结合，进行了固体推进剂药柱的结构可靠性分析。

Results Follow-up lasted 8 to 38 months, averaging 17 months. The 8 fractures healed uneventfully after an average of 4.3 months.

结果 随访时间为8~38个月，平均17个月。8例骨折愈合时间平均为4.3个月，Harris评分平均83分（76~92分）。

In addition, the concept of scene centriod is introduced to represent video scene by averaging of all key frames inside a group of shots in the given video scene, which makes an audacious attempt for high-level video unit extraction and representation;4 According to the given sample video, shot and scene-based video retrieval methods are discussed respectively, and the evaluation pricinples are also discussed.

进而，讨论了由场景中一组镜头的关键帧的质心表示场景关键帧，即场景质心的方法，从而为抽取高层的视频数据单元做出了大胆的尝试； d 从给定样本视频出发，分别讨论了基于镜头和场景的视频检索方法，并分析了检索性能评价的准则。

The luxury segment was one of the few areas of China's car market to experience unspectacular demand this year, averaging 14% growth through September.

豪华轿车是中国汽车市场今年为数不多几个需求不甚火爆的领域，截至9月底的平均销售增幅为14%。

Among the scleractinian recruits, Acropora sp. had the highest growth rate, averaging 1.8 mm/month in maximum diameter.

9种石珊瑚幼生中，以轴孔珊瑚幼生的成长率最快（最大直径增加率1.8 mm/月）。

In order to analyze the airborne LiDAR data corresponding to single trees and stand heights in the forestry area, we set up samples to measure tree heights of Alnus formosana, Cryptomeria japonica, and Chamaecyparis formosensis in the Alishan area. We build the Canopy Height Model based on the data from the airborne laser scanning system. Single Tree heights were estimated by averaging the CHM values within a 0.5m radius, and six different sizes of sample stands (5×5, 10×10, 12.5×12.5, 15×15, 17.5×17.5, and 20×20) were set up to extract the average heights within the area as the calculated value.

本研究於阿里山地区设置样区，针对台湾赤杨、柳杉、红桧等树种进行立木树高之量测，配合该样区之空载光达影像资料，建立树冠高度模型(Canopy height model， CHM)，探讨空载LiDAR在森林地区对於单木树高与林分高的量测情形；单株立木高系以样区立木位置为中心，萃取0.5 m 圆形环框范围内之CHM平均值为其推估值；光达林分高则以6种林分面积(5 m×5 m、10 m×10 m、12.5 m×12.5 m、15 m×15 m、17.5 m×17.5 m、20 m×20 m)萃取范围内之CHM平均值为其推估值。

Due to the difference on the environmental climate characteristic, climate variables selected, number of records sampled, averaging means and compoundable ways, there are 3 types 26 VPD calculation methods which were widespreadly used for estimating evapotranspiration around the world.

众多蒸发散量估算方程式中涉及VPD之计算，由於地域性气候环境背景特性、气象因子选用考量、取样资料频率多寡、资料平均方式及资料组合方式等之不同，目前遂有超过三十种以上VPD计算式，广为国内外著名机构或学者推荐在世界各地应用。

When opponents criticise Cubans' derisory wages (averaging $20 per month), officials always point to the additional "social wage" of free housing, health, education, transport and food rations.

每当对手抨击古巴微薄的工资（平均每月20美元），官员总是说明额外的「社会工资」，包括免费住房、医疗、教育、运输和粮食配给。

While the discontinuousness of liquids in RPB is considered, calculation is much more reduced by classifying liquid elements and averaging concentration in this mathematical model.

该模型在考虑填充床内液体微元不连续的同时，将液体微元进行分类并对浓度平均。

As a differential detection is used between the intercarrier, the proposed algorithm overcome the high sensitivity to timing error of conventional algorithm and is robust to multi-path. The effect of sample frequency offset can't be ignored in a continuous OFDM system of a large number of subcarriers. The estimation precision of the conventional algorithm is low and the realization is complex. A joint estimation of sample frequency offset and fine frequency offset based on difference operation is proposed. As averaging use a large number of samples in a maximum likelihood algorithm, the estimation precision is very high. The use of difference operation cancel the effect of carrier frequency offset, and the proposed sampling frequency estimation algorithm is robust to carrier frequency offset.

最后，本文对连续系统中的采样频率和载波频率精同步技术进行较为深入的研究，由于子载波数目大的连续OFDM传输系统中，采样频率偏差不可忽视，以往的采样频率估计方法精度低、实现复杂，因此本文提出了一种基于差分处理的采样频率偏差和精载波频率偏差联合估计算法，利用了最大似然算法进行采样频率偏差的估计，由于采用了差分处理方法，消除了载波频率偏差对采样频率偏差估计的影响，采用的最大似然算法对大量样点进行平均化处理，所以，相对以往算法，提出的联合算法估计精度高，而且采样频率偏差估计对载波频率偏差具有鲁棒性。

There are two types of gold deposits in this area, namely altered rock type and quartz vein type.

本区金矿床包括两种类型：柴胡栏子金矿床为蚀变岩型金矿；莲花山和红花沟金矿床属石英脉型。

You were home and it was two weeks ago.

你回到了家里。当时是两周前。