The paper analyses the dynamic flow force of spool valves using the momentum theory of fluid.
本文用动量理论对滑阀液动力进行了全面的理论分析。
Based on the blade element-momentum theory, this paper studied the aerodynamic performance prediction model for small wind turbines.
基于叶素动量理论分析了小型风力机的气动性能分析模型，并提出了叶片的气动优化设计方法。
In the range of high tip-speed ratio the results calculated by this method are closer to experimental data than that computed by momentum theory.
在高尖速比范围内，本方法给出的结果比动量理论给出的更加接加接近实验数据。
In this paper, we discussed the transition selection rule of electrical dipole radiation in atom physics by the parity theory and angular momentum theory in quantum.
本文利用量子力学的宇称理论和角动量理论，对原子物理学中所熟知的电偶极辐射的跃迁选择定则进行了理论探讨。
Combining momentum theory and vortex theory, rotor circulation equation was deduced. The rotor down-wash flow field was calculated using generalized down-wash flow model.
结合动量理论和涡流理论，推导了桨叶环量方程，用广义尾流模型计算了旋翼下洗流场。
The approach of blade-element theory is opposite that of momentum theory since it is concerned with the forces produced by the blades as a result of the motion of the fluid.
叶片元素理论的方法与动量原理的方法相反，因为它关注的是由流体运动导致叶片产生的力。
To incorporate the important effects of the rotor wake, the far-field boundary condition derived from the rotor momentum theory and the cyclic boundary condition have been used.
为了充分考虑旋翼尾迹对流场的影响，采用周期性边界条件和由动量理论导出的远场边界条件。
From fluid flow momentum theory the basic equation of flow dynamic forces in the spool closing process is derived, and the spool dynamic equation of the two-way cartridge valve is established.
本文根据流体动量理论导出了阀芯关闭过程中液动力的关系式，在此基础上建立了二通插装阀阀芯关闭运动方程。
The shroud at high speed is modeled as an elliptic wing in order to construct a momentum theory method to investigate the aerodynamic characteristics of ducted tail rotor in hover and forward flight.
引入尾流收缩比因子，并将大速度时的涵道等效为圆形机翼，建立了一个适合于直升机悬停和前飞状态涵道尾桨气动特性分析的动量理论方法。
In my column of Aug. 12, I identified 10 stocks with both strong momentum and high price-to-earnings-growth (PEG) ratios, on the theory that they were most vulnerable in a correction.
我在8月12日的专栏文章中列出了10只既具备强劲动量，股价相对于收益增长率(PEG)估值较高的股票，我认为此类股票最容易遭受回调。
According to the theory of general relativity, the speed and angular momentum of such a large spinning body twists the space and time around it in a process called frame-dragging.
根据爱因斯坦的广义相对论，像银河系这样的巨大自旋物体的速率和角动量在一个称为框架牵引的过程中会扭曲周围的时空。
In this article, the purpose and status of investigating the event-by-event fluctuations of transverse momentum are summarized both in theory and in experiment.
本文综述了单事件横动量起伏的理论和实验研究目的和现状。
Based on mass, momentum, energy conservation and the theory of wellbore radius heat transmission, established fluid pressure and temperature distribution prediction mathematical models.
基于质量、动量和能量守恒定律及井筒径向传热理论建立了流体压力、温度分布预测数学模型。
He developed the theory of rotational momentum and conservation of impulse.
他的理论旋转的势头和养护的冲动。
Based on theory analysis of metal solidification and hydrodynamics, momentum convection generated by rotating electromagnetic field do not improve feeding obviously.
据金属凝固理论和磁流体力学分析，电磁搅拌力引起的动量对流对补缩的促进作用并不大。
Based on the traditional Momentum-Blade Element theory, an improved method of aerodynamic calculation about the horizontal axis wind turbine in yaw or in pitch-up is presented in this paper.
本文将动量-叶素理论推广应用于计算水平轴风车叶轮有侧偏角或上仰角时的气动力。
As an important anomaly of the effective market theory, the momentum effect is one of the most serious challenges to the classical models of rational price formation.
作为有效市场理论的重要异象，动量效应是基于风险的传统资产定价理论的最严重挑战之一。
The spinor and momentum structures of the structure wave functions are completely determined by the theory.
介子结构波函数的旋量结构和动量结构都是完全确定的。
This expansion may transcend the existing framework of systemic theory and bring new momentum to the research on interpersonal metaphor.
研究的扩展可以超越现有系统功能语法理论框架的局限，为人际隐喻的研究带来新的动力。
The mathematical model of CYJ10-3-37HB is established and the most optimal parameters are obtained according to optimization theory. Movement and momentum performance is analyzed.
根据优化理论，建立了CYJ10 - 3 - 37hb抽油机的数学模型，并求出一组最优参数，分析了其运动和动力性能。
Based on the optimal control theory, an optimal attitude control strategy was proposed for the rigid spacecraft with two momentum wheel actuators.
利用最优控制方法研究了带有两个动量飞轮的刚体航天器姿态优化控制问题。
The momentum effect drives a juggernaut through one of the tenets of finance theory, the efficient-market hypothesis.
这种动量效应对另一条金融理论――”有效市场假设”――产生了强烈的冲击。
The radial momentum-position uncertainty relation in equality form of hydrogen atom and hydrogen-like ion is deduced by using the operator theory.
用算符理论推出了氢原子和类氢离子的等式型径向动量-位置不确定关系。
The fractional angular momentum would lead to the fractional quantization of magnetic flux which does not contradict the theory of superconductivity and the result of previous experiments.
分数角动量的存在必然导致分数磁通量子化，而分数磁通量子化和超导理论以及迄今为止的实验结果不相矛盾。
The parametrization problem of the momentum, sensible heat and water vapour transfer over the near sea surface is discussed by means of the aerodynamic theory.
随后，利用空气动力学理论讨论了贴海面动量、感热和水汽输送的参数化问题。
But a great number of experiments showed that there was a great differences between the real angular momentum and the anticipated value in theory.
大量的实验也表明实测的核素的自旋角动量与理论预测值之间有相当大的差距。
The relativistic relation of radiant heat was educed by transforming energy-momentum 4-vector of a single photon. The elicited results make sure P-E theory of relativistic thermodynamics once again.
通过单个光子的能量-动量四维矢量变换，导出了辐射热量的相对论关系，所得的结果再一次证实了相对论热力学的P_E理论。
The nucleon density and momentum distributions are calculated and compared with those of Hatree-Fock-Bogolubov theory and experimental data, respectively.
由单体密度矩阵计算得到的核子密度分布等与实验数据、理论值和其他方法的计算结果作了比较。
The nucleon density and momentum distributions are calculated and compared with those of Hatree-Fock-Bogolubov theory and experimental data, respectively.
由单体密度矩阵计算得到的核子密度分布等与实验数据、理论值和其他方法的计算结果作了比较。
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