矩

The main problem of direct toque control of a three-level inverter and control technique virtual synthesizing vectors based are demonstrated in detail, also, the method of vector selection is discussed materially.

深入阐述了三电平逆变器直接转矩控制的主要问题及虚拟合成矢量控制方法，详细讨论了三电平逆变器直接转矩控制中的矢量选择方案。

Furthermore, inner flow field was studied and the design method of blade is studied to improve the performance of the torque converter.

在此基础上，细致分析影响变矩器性能的因素，改进变矩器的叶型，最终达到优化的目标。

Based on analysis of the existing methods,a novel automatic torque compensation strategy was proposed.

在分析现有转矩提升方案的基础上，提出了一种新颖的转矩提升方法。

Assembly of the torsional spring constant and mass moment of inertia of each equivalent shaft-rotor element and the mass moment of inertia of each rotor yields the mathematical model of the entire shaft-rotor system.

将每一等效旋转轴-转子元素的扭转弹簧常数及质量惯性矩与每一转子的质量惯性矩组合，便可获得整个旋转轴-转子系统的数学模型。

The density of bone mineral substance and femoral geometry size and polar moment of inertia and torsional section modulus and rectangular moment of intertia and rectangular section modulus and biomechanics capabilities were determined.

连续给药90 d后处死大鼠，测定股骨的几何尺寸、极惯性矩、抗扭截面模数、截面惯性矩、抗弯截面模数、骨矿密度和股骨的生物力学试验。

Besides having the invariant to the translation,scaling and rotation,the wavelet moment has the multiresolution properties so it is suitable for classing the very similar objects.

小波矩除了具有矩特征的平移、缩放和旋转不变及抗噪性强的特性以外，还增加了小波对图象结构精细特征的把握能力强的优点。

This paper presents a design method of fuzzy PI parameter adaptive con troller in order to settle better the nonlinear problem of parameters ' changing in direct torque control .

为了更好地解决直接转矩控制系统中的变参数非线性问题，提出了一种适用于异步电动机直接转矩控制的模糊参数PI自适应速度调节器的设计方法

The Monte Carlo simulation shows that the present method is better than the Method of Moment in unbiasedness, and is generally comparable to MOM in efficiency.

对P-Ⅲ型总体分布，本文提出的权函数能使σ和Cs的估计由原方法的二阶加权中心矩降低为一阶加权中心矩估计。

A comparison of the present method with the Probability Weighted Moments indicates that the two methods are comparable to each other both in unbiasedness and in efficiency for the studied cases.

统计试验结果表明，修改后的双权函数法无偏性方面优于矩法，有效性与矩法相当；与PWM法的部分结果对比表明，两者统计性能接近。

In order to make cross joint type universal coupling long service life , puts forward setting up the torque examining system to control the torque, inspecting the position of input and output equipment to control the space position of the coupling and reduce the influence of additional force moment and control ling the balance force and the bearing clearance and so on, to avoid the coupling premature failure or shattering of the coupling.

为使十字轴式万向联轴器长寿命服股，提出了设置转矩测试系统控制转矩；通过监测输入及输出设备的位置控制联轴器的空间位置，以减少附加力矩的影响；控制平衡力及轴承间隙等技术控制措施，避免联轴器过早失效或损坏。

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。