查询词典 method of difference

BMD measurement of femoral neck without external reference phantom based on QCT data is an effective and feasible method, both MVM and LVM selected as internal reference is more convenient and has no difference comparing with erector spinae as internal reference.

基于QCT数据应用CAD无体模软件具有与有体模方法和DXA方法相同的测量BMD的能力，其中采用便捷的股内侧肌、股外侧肌作为内部参考具有与竖脊肌相近的结果，能够为医生提供BMD的参考信息，可用于骨质疏松的诊断、健康普查。

Among all of the stateless broadcast encryption schemes, subset difference method is the most practical.

在无状态型广播加密机制中，目前最为可行的是子集差别方法。

Consequently,three laws are revealed: 1 There exists the possibility of significant difference among priming effects extracted from the vaseline values,the completion rates of which are different,if the number of tested people is small;2the Superconsciousness scope method not only is superior to both the sublimin...

结果发现：（1）如被试数量较少，以不同补笔率为&基线值&所求得的启动效应之间发生显著差异的可能性存在；（2）超意识广度法能克服&阈下呈现刺激法&&分散注意法&的不足，为内隐记忆提供有利的识记情境；（3）&二次比较法&能为正常人内隐记忆的存在提供更为直接、可靠的证据，并能客观、精确地计量启动效应。

In this paper, in accordance with the mixed method, a measuring system, which consisted of a hydrothermograph with magnetic force agitator, a potential difference meter and a digit thermoammeter etc., were used in the determination of heat capacity of short paddy grain growing in the south China, with a special attention to the influence of moisture content upon the heat capacity of rough rice.

该研究根据混合测定法原理，用磁力搅拌式水卡计、电位计以及数字温度计等，组成一套测定装置，对我国南方产短粒型稻谷的热容进行测定，着重研究了稻谷的含水率对热容的影响。

There was no significant difference between the fatty acid compositions of the toxigenic and non-toxigenic strains. Conclusion:FAME method is useful in rapid identification of Vibrionaceae strains and in field isolation of V. cholerae. It can be used to judge the relationships of strains in small outbreaks, but it cannot differentiate the subgroups of V. cholerae.

结论脂肪酸分型对弧菌种的快速鉴定有应用价值，对霍乱弧菌的现场分离鉴定有辅助意义，在小样本暴发资料的研究中能够反映菌株之间的亲缘关系，但其对霍乱弧菌种属内的各种特征性菌群不具有鉴别能力。

This paper presents the principle of traveltime velocity tomography using Finite Difference method.

介绍了利用有限差分方法进行地震走时资料速度反演的基本原理与方法，并对理论模型进行了正演和反演。

In order to solve this problem, an improved algorithm is presented in the paper. Results from model data show that the method can diminish traveltime error in near surface model with great difference in slowness and describe accurately seismic sliding along the interface of the velocity layers.

提出了一种改进的地震波走时计算的逆风差分算法，通过考虑首波和散射波的走时，能有效地减小速度值差异较大的近地表地质模型的走时计算误差，准确地描述速度界面上折射波的滑行描述，特别适用于近地表层析成像及地震勘探中的静校正问题。

Based on a computing model of floor heating residences, indoor thermal environment and heat distribution under the effect of heat charge/discharge, operation control and solar radiation has been concluded. Concept and formula of equivalent heat supply has been put forward which indicate that actual heat supply will be equal to the sum of design heat supply and equivalent heat supply. Recommend coefficient has been given taken Dalian as an example. Computed according to the new method, design heat supply can be reduced to 37% in cloudy day and 43.3% in sunny day, energy saving effect is very obvious. In Tromb wall solar house, effect of concrete wall on indoor temperature swing and attenuation of temperature wave is very obvious. While the outdoor air-temperature swing exceeds 10℃, indoor air-temperature swing belows 3℃. In the experiment, maximal difference in temperature between inner surface and outer surface of the 300mm wall exceeded 10℃. Heat storage and collector efficiency varies adversely according to solar radiation. Factors such as thickness, material, absorptance of the wall and permeation of the glass cover all have big influence on heat storage and collector efficiency. There exsisted an optimal thickness of the wall, which can make the best of heat storage and collector efficiency. Most of the heat stored in conventional Trombe wall during the daytime has been lost to the outside at night without heat preservation. Heat preservation on the outside surface of the wall has effectively improved heat release performance of the wall at night, heat supply to the room has increased too.

通过建立的地板采暖系统动态热性能分析模型，得出了在蓄放热特性、运行方式和太阳辐射等因素耦合作用下的室内热环境及热量分配比例，提出了等效供热量的概念及计算公式，指出实际所需供热量应等于设计供热量加上等效供热量，并以大连为例，给出了等效供热量的修正系数，以新方法计算，阴天可减少设计供热量37％，晴天最大可以减少设计供热量43.3％，节能效果显著；集热蓄热墙式太阳房中，混凝土蓄热墙的室温均一化效果和对温度波的削减作用非常明显，当室外温度波动最大幅度超过10℃时，室温波幅不超过3℃，实验中300mm厚墙体内外表面温差超过10℃；墙体蓄热效率与集热效率随太阳辐射照度的变化呈相反的变化趋势；墙体厚度、材料、表面吸收率以及盖板透过率等因素对集热和蓄热效率均有较大的影响，存在一个最佳的墙体厚度值，使得墙体集热和蓄热综合性能最优；传统的蓄热墙夜间没有外保温，辐射散热损失很大，研究表明墙体外保温方式明显改善了蓄热墙夜间的散热性能，增加了向室内的供热量。

There is obvious difference between groundwater and surface water ,and the effluents in winter and in spring also differ greatly. This study shows that SOS / umu test, as an important and useful method for drinking water safety evaluation, can be used for evaluating the removal efficiency of the genotoxicity quickly and accurately.

通过研究表明，本研究所应用的生物毒性测试SOS/Umu能够快速、准确地对水厂工艺过程中致突变物质的处理效果进行评价，能对工艺改进提出指导，是自来水质安全性评价的重要补充手段。

Energy deposition at the interface of the particles caused by micro-explosive welding in explosive consolidation of metal powders is analyzed by symmetrical impaction model of uncompressible liquid. Two-dimensional equation of energy in the flow field of explosive welding is deduced and solved by finite difference method. Then the distribution of the temperature in the flow field is calculated on the basis of considering the adiabatic compression.

摘 要：以不可压缩理想流体对称碰撞模型对金属粉末爆炸烧结中由微爆炸焊接引起的颗粒界面附近沉积的能量进行了分析，在考虑热传导效应的基础上推导出了焊接流场中二维形式的能量方程并用有限差分法对其进行了求解，在考虑冲击绝热压缩贡献的基础上计算出了焊接流场中的温度分布。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。