本文采用扩散模型来讨论核裂变中的瞬态过程。
The transient behavior in approaching to quasi-stationary state for fissioning systems is studied by diffusion model.
论述了用多重网格法研究多缸内燃机的进气瞬态过程。
The study on transient performance of intake charge in gasoline engine through multi net method is presented.
并联混合动力能量管理和瞬态过程动力控制都需要发动机的实时转矩。
For either energy management or transient process control, it is essential to obtain the torque of the engine.
应用表明：系统有较高的测量精度，特别适用于瞬态过程的光谱分析。
Practice shows that this system has a high measuring distinguishability, and is especially suit for instantaneous process spectrum analyses.
车用电控柴油机瞬态过程控制是车用柴油机电子控制中的一项重要内容。
Vehicle Transient process control is an important function of the diesel engine electronic control system.
瞬态过程研究为深入分析电控系统和电控柴油机的性能提供了崭新的手段。
Study of transient process provides a new method to analyze performance of electronic controlled system.
派克方程是一种最常用的有效的对水轮发电机瞬态过程做出准确分析的方法。
Park Equation is a kind of the most general and very effective tool in analyzing the transient process of hydro - generator.
本文叙述了一个适用于各种单次瞬态过程的频谱分析仪的工作原理和实验结果。
The principles and experimental results of a frequency spectrum analyzer for all types of single transient processes are described in this paper.
还得到非线性混频效应的瞬态过程。共振增强存在于此非线性混频过程中。
The transient behavior of nonlinear wave-mixing effect, where the resonant enhancement exists, is also obtained.
研究了Cd含量对电致发光亮度、发光光谱、光生电子瞬态过程和热释光的影响。
The effect of the content of Cd on the temporal process of photoelectron, luminescence spectrum and thermo-luminescence were studied.
该模型可用于分析压水堆核电厂U型管自然循环式蒸汽发生器的热工水力瞬态过程。
This model can be used to analyze thermal-hydraulic transient behaviour of inverted U-tube steam generators in PWR power plants.
本文在叠加原理和拉氏变换方法的基础上，分析了感应电机在不同的短路状态下瞬态过程。
On the basis of the superposition principle and Laplace transformation, the process of the transient state under different short circuit states of induction machine is analyzed.
本文采用理论分析和数值仿真方法对大长径比固体火箭发动机点火瞬态过程进行了系统研究。
This dissertation integrates theoretical analysis and numerical simulation method to investigate the ignition transient process of large aspect ratio solid rocket motors.
本文以降低瞬态过程排放为目标，对柴油机IS G混合动力系统的优化控制问题展开研究。
For the purposes of reducing emission in transient state, optimal control of ISG hybrid system with diesel engines has been studied in this dissertation.
建立了弧焊逆变器的器件级数学模型，对功率变换回路的瞬态过程进行了深入系统的仿真研究。
Based on simulating transient process of power conversion circuit thoroughly and systematically, working condition of magnetic core is analyzed in detail at various arc loads.
本文导出了同步电机三相对称负载突然拉开，电机端电压与励磁电流在瞬态过程中的解析表达式。
In this paper, the breaking transient formulas of terminal voltage and field current of synchronous machine with three phase symmetric load have been derived.
仿真的结果与理论分析的结论吻合很好，这佐证了该软件非常适合于非线性瞬态过程的分析和模拟。
The simulation results agree with the theory perfectly. Then the conclusion can be drawn that ANSYS is adapted to the simulation of nonlinear twinkle analysis.
超声速风洞的起动过程涉及到湍流、激波及低亚声速和高超声速混合流动，是一个非常复杂的瞬态过程。
The starting process of wind tunnel, involving turbulence, shock wave, low subsonic and high supersonic mixing flows, is a very complex transient process.
脉冲声技术是一种很常用的水声测量技术，但由于脉冲声存在着瞬态过程，严重影响了它在低频下的使用。
Sound pulse technique is often used in the underwater acoustic measurement, but it has transients, so it can not be used in low frequencies.
大多数关于PEMFC数值模拟的研究关注于其在稳定状态下的特征，只有很少的是直接研究瞬态过程的。
Most of the numerical simulations of the research of PEMFC concerned about its characteristics in the state of stability, there are very few studies have focus on the transient process.
本实验室采用硬件延迟控制触发和软件循环采集保存的手段，实现了瞬态过程的X射线数字化实时成象功能。
We used the means of the hardware delay control trigger and the software circularly saving, realized the flash process X-ray digital imaging function.
仿真结果表明所建立的并励直流电动机瞬态仿真模型是可靠的，可用于并励直流电动机各种瞬态过程的仿真研究。
At last, the simulation results are given along with conclusions that the transient-process simulation model is reliable for various simulation study of shunt-excited DC motors.
对涌流瞬态过程进行了分析，研究计算办法并编制了计算软件，可以对变压器空载合闸时的励磁涌流进行计算模拟。
We study the calculating method and program the calculating software to simulate the exciter flow current on the no-load switching-in of transformer.
讨论了一般机械在瞬态过程和稳态过程中所呈现出的不同振动特性，提出了基于瞬态过程分析机械故障诊断的必要性。
This paper analyzes the necessity of fault diagnosis in transient procedure and discusses the different vibration characteristics in transient and stable procedures.
以降低瞬态过程排放为目标的优化控制算法是本文的核心研究内容，柴油机和电机的转矩协调控制是降低排放的基础。
The optimal control algorithm targeting at reducing emission in transient state is the core of the study, and the torque coordination control between the engine and the motor serves as a basis.
研究结果表明，以线性表格为基础的修正方式不能完全控制瞬态过程空燃比的偏移，初始阶段的空燃比偏移脉冲难以避免。
The study shows that the modification manner based on linear table can't eliminate the AFR excursion in transient and the AFR pulse at the beginning of transient is inevitable.
用通用计算流体力学程序FLUENT计算了中国氦冷固体增殖实验包层模块（TBM）冷却剂丧失事故中的冷却剂排放瞬态过程。
The general-purpose CFD code FLUENT is used to calculate the transient process of China helium-cooled solid breeder test blanket module (TBM) under loss of coolant accident (LOCA) scenario.
在考虑瞬态过程中动量扩散速度基础上，用拉普拉斯变换法对无限长平板突然起动瞬态动量定解方程进行了求解，并按涡量定义求出涡量分布函数。
Based on the limited momentum propagation velocity, this paper presents the solution of the transient momentum equation by Laplace transform. The distribution functions of velocity and eddy are given.
回顾了前人利用电子束焊接过程产生的特有现象作为研究瞬态过程的依据，揭示了一些焊接瞬态特征以及提出的各种有关电子束深穿透焊接的物理模型。
Some special dynamic characteristics were disclosed using some special phenomena in the EBW processing, and at the same time, the physical models of the EB deep penetration were put forward.
它仅在流程运行的过程中存在，从这个角度来讲，它是瞬态的。
It is transient in the sense that it exists only during the running of the process.
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