矩

If the flagpole is to remain stationary , one or more other forces must also be acting in order to make the total torque vanish

如果旗杆保持不动，必定有一个或几个其它的力作用于旗杆，才能使总转矩为零。

Odd a shape compound leaf, flocculus 7-11(13), egg form or circle of regulations of state pouring egg, small change is simple, whole reason, opposite, grow 3.5-8.0cm, wide 2-5cm, tip acute is pointed, base ministry wide wedge or circle, without wool, below young leaf be grown closely fluff.

奇数羽状复叶，小叶7-11(13)，卵形或倒卵状矩圆形，薄革质，全缘，对生，长3.5-8.0cm，宽2-5cm，先端锐尖，基部宽楔形或圆形，无毛，幼叶下面密被长柔毛。

In our recent work of simulating the chemical process of polymerization by matho-matical models,problems involving Flory distribution and its moments of different orders have been frequently encountered.

最近我们在成纤高聚物反应工程数学模拟研究过程中，多次碰到Flory分布高阶统计矩的问题——级数？

The diffraction distributions of Gaussian beam limited by the circular apertures with different sizes in scanning objectives focal plane were studied, and then the effective spot radius in focal plane was calculated using second moment and compared with the ideal one. The influence of apertures with different sizes on resolution was analyzed.

在不同孔径圆孔的限制下，对扫描物镜焦面上的衍射光场分布进行数值计算，并利用二阶矩统计的方法对焦面上的等效光斑半径进行数值计算，将其与不受限时的理想情况进行对比，分析孔径尺度对激光束扫描系统分辨率的影响。

Improve the accuracy of the initial rotor position estimator by using the Fourier series expansion.

在永磁同步的马达启动方面，则透过送出不同向量空间角度的定子电压向量脉冲所量测到的d轴定子电流的大小来估测转子的初始位置，并利用d轴定子电流在空间向量角度以2π为周期的特性，应用傅立叶级数分析做曲线拟合的方式提高转子位置估测解析度，以提高转矩/电流比节省不必要的功率浪费。

The analysis of the Fraunhofer diffraction pattern of the twin rectangle aperture

利用Mathematica软件，通过夫朗和费衍射公式计算双矩孔的衍射光强，并且绘制出了衍射图样。

Rational number wavelet filter can be constructed by reducing the order of vanishing moments of wavelet function, but the value of free variable that appears in design equations should be selected in a certain range, because the wavelet construction must meet Daubechies compact-support condition.

有理系数小波滤波器的设计可以通过降低小波函数消失矩阶数来实现，但设计方程中出现的自由变量的取值需要在一定的范围之内，因为需要满足Daubechies紧支集条件。

In this system,the VVVF(variable voltage variable frequency) control method based on magnetic flux trajectory is applied.In the system,it is the target for the magnetic flux linkage polygon to be greatly approximate to the ideal magnetic flux circle.Considering such limitations as the low speed torque ripple,high speed real time and the working frequency of switching element,through the subsection synchronization control method by applying different numbers of magnetic flux linkage polygon for different frequency range,the perfect precision specifications for speed can be obtained.

系统采用基于磁通轨迹法的他控式变频调速方案，以磁链多边形尽量逼近理想磁通圆为目标，并考虑低速转矩脉动、高速实时性和开关元件的工作频率限制等约束条件，通过采用分段同步控制方式，在不同的频段采用不同的磁链多边形边数，使系统获得了优异的转速精度指标。

At last the light intensity distribution of Fresnel diffraction at several rectangular apertures is calculated and analyzed.

最后计算分析了多矩孔菲涅尔衍射的光强分布。

A friction clutch that will slip with the ''.

用转矩滑动的摩擦离合器。

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。