矩

B Angular momentum is a vector quantity as are also angular velocity, angular acceleration and torque.

角动量是个矢量，角速度和角加速和转矩也都是矢量。

Angular momentum is a vector quantity as are also angular velocity, angular acceleration and torque.

角动量是个矢量，角速度和角加速和转矩也都是矢量。

For a rigid body rotating about a principal axis , the angular acceleration is related to torque by T =Ia.

对于绕主轴转动的刚体来说，角加速度与转矩的关系是T＝Ia。

These above problems, which are very important and valuable in agricultural crops area monitoring, are currently less researched. Hence, in this paper, seven types of common texture and five vegetation indices were respectively added into TM multispectral bands to classify using three different methods, which are Minimum Distance, Maximum Likelihood and Support Vector Machine, and analyze the effect on winter wheat identification accuracy by comparing the classification results. The contexture include Mean, Variance, Homogeneity, Contrast, Dissimilarity, Entropy, Variance, Angular Second Moment and Correlation, and the vegetation indices are RVI, SAVI, RDVI, NDWI and SLAVI.

为此，该文将平均值、方差、均一性、反差、相异性、熵、角二阶矩、灰度相关7种纹理信息以及比值植被指数、土壤调整植被指数、重归一化植被指数、植被液态水含量指数、有效叶面积植被指数5种植被指数信息分别加入到TM多光谱数据中，同时还进行了最佳波段选择，利用最小距离、最大似然和支持向量机3种方法进行分类提取小麦，研究了不同特征信息对小麦测量精度的影响。

The integral area for calculating the beam width by using the definition of generalized second-order moments is selected to ensure the energy in the angular domain more than 75% of the total beam energy and the measurement method and steps still follow the relevant ISO standards. The generalized M2 factor of truncated Gaussian beam has been measured. The experimental results for different truncated parameters have been compared with the theoretical results, showing the validness of the method proposed.

在利用广义强度二阶矩计算光束束宽时，以积分角谱范围能够包含光束总能量的75%以上作为积分范围的选取标准，并遵循现有的国际标准化组织规定的测量步骤和方法对截断高斯光束的广义M2因子进行了测量，并将不同截断参量时的实验结果与理论计算结果进行了比较，证明了该方法的正确性。

The method of moments in conjunction with the asymptotic waveform evaluation technique is applied to predict the mono-static RCS of an arbitrarily shaped two-dimensional cylinder in both frequency and angular domains.

本文采用矩量法并结合渐近波形估计技术在频域和角度上预测了任意形状二维柱体的单站RCS。

The oblong face needs to be shortened, the angularity hidden and the hairline blurred.

矩圆形脸需要被缩短、将棱角隐藏、将发型轮廓模糊化。

We choose a project with loaded annual ring microstrip antenna, and the character of compact and broadband is achieved by loading a chip-resister to the antenna. The antenna is analysed by the software based on MOM.

文中选择与引信弹体共形的环形微带天线作为设计方案，通过对环形微带天线加载电阻，实现天线的小型化和高带宽；使用基于矩量法的电磁仿真软件对天线进行分析，并对天线参数进行了测量，给出了天线性能的仿真和测试结果。

The design of a loaded annular ring microstrip antenna is given in this paper.

采用矩量法对一种加载圆环形微带天线进行分析和设计，并在理论分析基础上对该种天线进行了研制。

It turns out, that the anomalous magnetic moment of the nucleon has negligible influence upon the

结果指出：核子的反常磁矩对于磁多极内转换系数以及由于质子跃迁导致的电多极内转换系数的影响微不足道。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。