查询词典 mean

First, the contributing degree of indices and their mean can be solved by means of the theory of contribution degree; secondly, the deviation of weights from the mean of these weights is determined according to the deviation of contributing degree of indices from the mean of contributing degree. Based on this, the formula of solving weights can be derived.

用贡献度理论求得各指标的贡献度，并求其均值；以各指标的贡献度与均值的差为参考，确定相应指标的权与权均值的差，并以此为依据建立权值的求解公式，求得相应指标的权。

In this beamline, with the neutron depolarization technique, provides information of the mean domain size, the mean square direction cosine of the magnetic induction in the domains, and the mean magnetization of a magnetic sample.

三维去极化中子仪主要为观察极化中子通过磁性材过程，受到内部磁区的扰动使得极化中子向的方向和大小改变，进分析后可以观察出材内部平均磁区大小、平均感应磁场强、磁区平均方向余弦的平方。

Higher value of mean endomorphy and mean mesomorphy showed male students had much fat and more developed skeletal and muscle systems than female students. Compared with other regions, college students in Qingdao area were fatter,and skeletal and muscle systems were poorly developed. The comparison of the mean ectomorphy and the body length/body weight showed that the male was close to the female on the body linearity.

内因子和中因子平均值偏高反映出青岛高校男性大学生在肥胖程度、肌肉和骨骼发达程度上较女性偏大，而外因子平均值和HWR值的比较显示出男女大学生身体线性度相近；男生内因子平均离散度和HWR离散度较女生偏高，SAD为1.65±0.51，表明男女大学生体型具有一定的差异。

The main research work of this paper are focused on following areas:(1) Based on review of the theory and methods on measurements of particle fields, a new idea for obtaining particle size and velocity distribution within a spray through imaging the particle field with a laser light sheet was put forward;(2) A DPIV (Digital Particle Image Velocimetry) system, is fit for velocity measurements of low speed flows, was developed and expended to particle size distribution measurement;(3) An arithmetic for particle velocity field reconstruction was developed, and the velocity distribution of water mist was also obtained;(4) A software system for particle analysis, which based on image geometry emend, de-noise and image partition was developed, the parameters such as particle size distribution, mean diameter, number of particles, minimum and maximum diameter can be got with this system;(5) A water mist system was developed and its characteristics, such as droplet velocity, size distribution, number of droplets and spray cone angle under different conditions were obtained from experiments with PIVS;(6) The measurement results of water mist characteristics with PIVS were compared and analyzed with the simply simulated results, and in addition, in order to verify the accuracy of PIVS, some experiments were conducted with the standard particles, such as glass-ball with known mean diameter of 50μm and 115μm, metallic coated tracing particle with mean diameter of 12μm;(7) Some experimental studies on interaction of water mist with liquid pool fires were conducted.

本论文的主要工作包括以下几个方面：（1）在对粒子场测量的相关理论和具体方法进行综述分析的基础上，提出了通过采用激光片光对粒子场进行成像以获取其粒径和速度等参数分布的新思路；（2）研制了适宜于低速流动速度场测量的DPIV(Digital Particle Image Velocimetry)系统，并使其实现了对粒子场粒径分布的测量功能；（3）研制了基于粒子运动轨迹的速度场重建算法，获取了细水雾雾场的速度分布；（4）研制了基于几何校正、去噪、图象分割等图象处理方法的"粒度分析软件系统"，该系统既可分析给出粒子场的粒径分布直方图和平均粒径，还可给出粒子的数目以及最大、最小粒径等信息；（5）建立了一细水雾发生系统，并应用上述方法对不同压力条件下细水雾系统的雾场特性（如速度分布、雾滴粒径分布、雾滴的数目、喷雾张角以及雾化长度等）进行了实验测量研究；（6）对细水雾特性参数的PIVS测量结果与计算机简单模拟计算结果进行了定性比较分析，并利用平均粒径为50μm和115μm的玻璃球以及12μm的标准示踪粒子对PIVS系统的粒径和速度测量结果进行了实验验证，同时对其局限性进行了分析讨论；（7）对不同工况条件下细水雾与油池火相互作用的过程进行了模拟实验研究。

The surgical duration ranged from 35 to 170 min ［mean=（92.3±25.6） min］; amount of blood loss during operation was 50-700 ml ［mean=（120.0±36.3） ml］. The earliest time of anal exsufflation was 9 h after operation and the last was 27 h. The postoperative morbidity was 12.6%. The hospital stay ranged from 5 d to 9 d ［mean=（7.2±1.6） d］.

手术时间最长170 min，最短35 min，平均(92.3±25.6) min；术中出血50～700 ml，平均(120.0±36.3) ml，术后肛门排气时间最短9 h，最长27 h，术后病率12.6%，住院时间最短5天，最长9天，平均(7.2±1.6)天。

Results:The operative time was 1550min,mean 24.6min,blood loss was 1040ml,mean 22.5ml,the time of anal exsufflation was 1030h,mean 18.4h.

结果：手术时间15～50min，平均24.6min；出血10～40ml，平均22.5ml。肛门排气时间10～30h，平均18.4h。

Using variable upper limit integration and Lagrange mean value theorem,this article proves the first mean value theorem under the same condition and give several spread of the first integral mean value theorem .

在条件完全相同的情况下改进积分第一中值定理，并利用变上限积分函数和拉格郎日中值定理证明该定理，并给出积分第一中值定理的几个推广

Both the departure field of the mean atmospheric circula tion in summer in flood years and the correlation field between the summer mean atmospheric circulation in East Asia and the number of summer equivalent torre ntial rain days in the Beijing area possess the main characteristics of the mean circulation pattern for the torrential rain process in North China.

吴广仁等[2 ]根据降水距平场相似程度，给出了我国东部雨带的 4种分布型，并指出西太平洋副高位置对雨带分型有决定性作用，北京夏季降水正常或偏多时，是属于其中的黄淮东型和黄河河套型。

In this paper, the results of [1,4] are generalized, and mean value theory are discussed further. In this basis, we talk over mean function and mean family of n variables in m dimensions.

本文推广了文[1，4]的结果，进一步深入讨论一维的平均族理论，并在此基础上讨论高维n元平均函数和n元平均族。

The research for the means has a long history, the classical means include algebraic mean, geometric mean and harmonic mean etc.

平均数理论研究的历史久远，经典的平均数包括算术平均，几何平均，调和平均等。

The most precious possession that ever comes to a man in this world is a womans heart.

在这个世界上，男人最可贵的财产就是一个女人的心。

Some 4 years above company and divisional management experience, 6 year foreign enterprises work experience.

有4年以上的公司及部门管理经验，6年外企工作经验。