矩

Experiment results show that the stator current is a sine curve with little harmonics, the electromagnetic torque has good dynamic and steady response performance, and the estimated speed can accurately track the actual speed.

实验结果表明，定子电流为正弦波且谐波小，电磁转矩的稳动态性能好，电机的辨识速度能够快速而准确地收敛到真实转速。

The simulation and experiment results show that the stator flux track is a circle, the stator current is a sine curve with few harmonics, the torque has small ripple and fast dynamic response.

仿真和实验结果证明了本文实现的全速度范围异步电机间接转矩控制方案是可行的，系统具有良好的动静态性能，在具有较高开关频率的中小功率应用场合有着非常好的应用前景。

The experimental results show that the stator current is a sine curve with little harmonics,the electrics torque has good dynamic and steady response performance.The estimated speed can accurately track the actual speed.

实验结果表明，定子电流为正弦波且谐波小，电磁转矩稳态和动态性能好，电机的辨识速度能准确跟踪真实转速。

Assuming the initial shape of a skirt to be an n-sided cylinder, the shape of its bottom edge can be modified by changing the distance between each edge and the centroid of bottom plane according to the amplitude of sine curve at corresponding angle.

所显示是一个n支持的圆筒，它的下缘形状可以被改变每个边缘和底下飞机之间矩心的距离修改根据高度正弦曲线在对应的角度。

Making use of the characteristic matrix methods, the photonic bandgap of the electromagnetic wave in the photonic crystal that the refractive index is discontinuous to change along with the sine function is studied.

利用特征矩阵法，研究了折射率正弦离散变化的一维声子晶体中电磁波的能带结构。

These results give the evidence about the intramolecular charge transfer character in the emitting singlet state of this compound.

用Lippert-Mataga方程计算了该化合物基态和激发态偶极矩间的差值。结果证明该化合物在激发态存在着强烈的分子内电荷转移行为。

Then based on the second-order moment method, the closed-form expression of the beam width is obtained, and the beam waist width and waist location for elegant cosh square Gaussian and Sinh square Gaussian beams are also deduced.

基于二阶矩定义，分别推导了复宗量双曲余弦平方-高斯光束和双曲正弦平方-高斯光束的光斑尺寸、束腰宽度及其位置，并对结果作了详细的分析和讨论。

The following functions are recognized in formulae: log, ln, factorial, sin, cos, tan, acos, asin, atan, cosh, sinh, acosh, asinh.

在下列功能：日志、淋巴结、公式、罪、阶乘矩函数，因为，棕褐色，asin事业，sinh函数，函数，函数，，。

Finally, applying the current basis function of three-term sinusoidal expansion, the radiation characteristic and input impedance of the vertical and horizontal antennas above lossy ground are analyzed by the method of moments with the variation of frequency, height from the ground and ground parameters.

最后，用矩量法，采用正弦插值基函数，研究地面上方垂直、水平线天线的辐射特性和输入阻抗随着频率、离地高度、地面参数等变化的情况。

Using the moderately thick cylindrical model and sinusoidal interpolation basis function, the sleeve monopole at the circular ground plane is analyzed by the moment method. The input impedance and radiation pattern are given.

采用粗圆柱线天线快速精确计算模型，选用正弦插值基函数，将圆盘地面和套筒作为一个整体进行矩量法分析计算，研究其驻波和辐射方向图特性。

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。