查询词典 metric coefficient

Then a model to distinguish skin drag coefficient and form drag coefficient is established based on a floe drag experiment by using a wave-current tank in laboratory, and the quantitative relationship between skin/form drag coefficient and floe geometric parameters is established as a result.

水拖曳系数同海冰几何形态参数的关系才是提高拖曳系数适应性和准确性的最佳途径。

The consistency registration algorithm, which used local cross correlation coefficient as the similarity metric, was proposed.

提出一种利用局部互相关系数作为相似性测度的灰度一致性配准算法。

The research results showed that the degree distribution of enterprises competition network obeyed to subsection exponent distribution, and had small average path length, large clustering coefficient and structure metric.

研究发现中国汽车零部件企业竞争网的度分布服从分段指数分布，且具有较小的平均路径长度、较大的群聚系数和结构测度值，表明其是既具有小世界性，又具有无标度性的随机网络。

In the airfoil design for potential flow using conformal mapping technique, the metric coefficient was written as the analytical form.

在应用保角转绘技术的位流翼型设计中，研究了保角转绘网格中度规系数的解析表达；推导了将保角转绘模还原为翼型坐标的计算公式，而且将AF3算法用于位流方程的伴随方程的求解中，并在位流翼型的设计中得到了验证。

Firstly, the proposed metric acquires the watermark embedded map based on the characteristics of human visual system. Then, the 3-level discrete wavelet decomposition is implemented, and the digital watermark is embedded into each wavelet coefficient block according to the watermark embedded map.

提出的方法首先结合人类视觉系统的特性检测原始图像的纹理丰富区域，获得水印嵌入指示图；然后将原始图像进行3层小波分解，根据水印嵌入指示图在每个小波系数块内利用量化的方法嵌入自定义水印；最后通过失真图像的水印复原率实现对图像的客观质量评价。

The method of the research in the paper is impellent,and the basal research course is the following.Firstly,the author uses the Theil coefficient and Gini coefficient to analyze the regional economic gap,and decomposes the structure in China.At the same time,the author tests theσconvergence,the absoluteβconvergence,the conditionalβconvergence and the club convergence.Secondly, the author analyzes the forming reason and mechanism of the regional economic gap in China.

本文研究过程中采取逐步深入的推进方法，其基本研究思路是：首先，使用基尼系数和泰勒指数对中国地区经济发展差距的历史演变轨迹进行了分析，并对其形成结构进行了分解，同时对中国经济增长的σ收敛、绝对β收敛、条件β收敛和"俱乐部"收敛进行了检验，以此为基础形成了对中国地区经济发展差距的全面了解；其次，以新古典增长理论和新增长理论为基础对中国地区经济发展差距的形成机制进行了分析；再次，以FDI非均衡分布为视角对中国地区经济发展差距的形成机制进行了解释；最后，提出了本文的政策建议。

Experimental results indicate that the variance coefficient was not bigger than 4.98% in the range of 50×10^(-6)~10000×10^(-6); the coefficient was not bigger than 0.44% and the absolute error was less than 0.35×10^(-6) in the range of 2.5×10^(-6)~10×10^(-6).

该分析方法在50×10^(-6)~10000×10^(-6)范围内，变异系数不大于0.44%；在2.5×10^(-6)~10×10^(-6)范围内，变异系数不大于4.98%，绝对误差小于0.35×10^(-6)。

It is based on the analysis of reflectometric interference spectrum and by this means, optical constants, such as extinction coefficient, refractive index, absorption coefficient and thickness, can be calculated with a high precision.

该方法是一种高精度的测量方法，与透射光谱分析法相比，反射干涉测量方法对于薄膜系统的载体要求较小，可以是透明载体，也可以是非透明基底，可以是金属载体，也可以是光纤端面。

Pitch circle diameter: d = mz = 3X12 = 36 Tooth crown heights: ha = m (f0 + x)= 3X (l +0.5)= 4.5 Tooth High: hf = m (f0 + cx)= 3X (l +0.25-0.5)= 2.25 Tooth full height: h = ha + hf = 4.5 +2.25 = 6.75 Addendum circle Chemical pumps diameter: Da = d +2 ha = 36 +2 X4.5 = 45 Fixed string tooth thickness: Sxn = m (π/ 2 * cos2a + xsin2a)= 3X (1.387 +0.6428 X0.5)= 5.125 Fixed string of high gear tooth thickness measurement: hxn = m (π/ 8 * sin2a + xsin2a)= 3X (0.7476X0.117X0.5)= 2.42 Modulus coefficient x0.5 m3 O20 ° pressure angle tooth thickness Sxn5.12 fixed string Addendum Coefficient string f1 fixed gear tooth thickness measurement most high hxn2.42 Teeth z12 2, shaft wear and tear maintenance: Axis gear pump wear is mainly because with the support roller shaft at both ends between the friction and wear, so that smaller shaft diameter.

分度圆直径：d=mz=3X12=36 齿顶高：ha=m（f0+x）=3X（l+0.5）=4.5 齿根高：hf=m（f0+c-x）=3X（l+0.25-0.5）=2.25 齿全高：h=ha+hf=4.5+2.25=6.75 齿顶圆直径：Da=d+2ha=36+2X4.5=45 固定弦齿厚：Sxn=m（π/2*cos2a+xsin2a）=3X（1.387+0.6428X0.5）=5.125 固定弦齿厚测量用齿高：hxn=m（π/8*sin2a+xsin2a）=3X（0.7476X0.117X0.5）=2.42 模数m3变位系数x0.5 齿形角o20°固定弦齿厚Sxn5.12 齿顶高系数f1固定弦齿厚测最齿高hxn2.42 齿数z12 2、轴的磨损维修：齿轮泵中轴的磨损主要是因为轴两端与支撑滚针间的摩擦磨损，使轴径变小。

The spatial-temporal distribution of NPP along NECT and its response to climatic change were also analyzed. Results showed that the change tendency of NPP spatial distribution in NECT is quite similar to that of precipitation and their spatial correlation coefficient is up to 0.84 (P.01). The inter-annual variation of NPP in NECT is mainly affected by the change of the aestival NPP every year, which accounts for 67.6% of the inter-annual increase in NPP and their spatial correlation coefficient is 0.95 (P.01). The NPP in NECT is mainly cumulated between May and September, which accounts for 89.8% of the annual NPP. The NPP in summer accounts for 65.9% of the annual NPP and is the lowest in winter. Recent climate changes have enhanced plant growth in NECT. The mean NPP increased 14.3% from 1980s to 1990s. The inter-annual linear trend of NPP is 4.6 gCm^(-2)a^(-1), and the relative trend is 1.17%, which owns mainly to the increasing temperature.

结果表明：(1)NECT样带植被NPP的空间变化趋势同降水量的空间变化十分相似，由东到西逐渐降低，二者在空间上的相关性达到了0.84 (P.01)，说明NECT样带的植被NPP在空间分布上主要受水分趋动：(2)NECT样带植被NPP的年际变化主要是由各年份夏季NPP的变化造成的，夏季对NECT样带植被NPP的年际增长贡献率最大(67.6%)，二者之间的相关性达到了0.95 (P.01)；(3)NECT样带的植被NPP积累期主要发生在5-9月份，这5个月的NPP占了全年NPP总量的89.8%，整个夏季（6-8月份）的NPP占了全年的65.9%，冬季（12-2月份）的NPP最低，基本为0；(4)近19年来的气候变化促进了NECT样带的植被生长，从1980年代到1990年代，NPP显著增加，年代际相对增长率为14.3%，平均年际绝对增长趋势为4.6 gCm^(-2)a^(-1)，相对增长趋势为1.17%，这主要是由温度升高引起的。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48