温度在结构内部的分布由多个变量决定，是一个非稳态的温度场。
The temperature distribution in the structure is decided by many variables and it is a transient temperature field.
汽车发动机经常在非稳态的过渡工况下工作，即启动、暖机、突加和突减工况。
The automobile engine is usually worked under non steady state of transient operating conditions, i. e. starting, warming, suddenly loading and unloading.
本文借用系统论中的自组织理论研究了供应链系统的演化过程，首次提出了供应链非稳态的定义及其特征；
This text studies the course of evolution in the supply chain using theory of self-organization in the systems theory, and brings up the definition and characteristic of the instable state.
这种液晶是双稳态的，意即没电时能保持反射状态或非反射状态。
The crystals are bistable, which means that they can remain in either a reflective or non-reflective state without any power.
采用边界离散方法对具有辐射换热边界的平面非规则域内稳态温度场进行了分析，得到了级数形式的解。
The steady temperature field in irregular plane domain with radiation heat exchange boundary is analyzed by the boundary discrete method, and the solution in form of series is obtained.
时-频联合信号分析法能描述非稳态信号的频率如何随时间而变化，故它能使我们更好地理解信号的本质。
Joint time Frequency Analysis (JTFA) describes and determines how the frequencies of non stationary signals change over time. It offers a better understanding of nature of the signal.
巷道火灾节流过程中各物理参数变化时序是正确模拟非稳态火灾过程和救灾决策的基础。
In the process of tunnel fire throttling, the variation time sequence of various physical parameters is the bases for accurately modeling the unsteady fire process and fire fighting decision-making.
HHTM既包含了异质结效应，又包含了高场输运中的速度过冲等非稳态输运效应。
HHTM, including both heterostructure effect and nonstationary transport effect such as velocity overshoot effect, expends much shorter calculating time than Monte-Carlo method.
由于胃电信号的非稳态和非线性，胃电信号时频参量的变化是非线性的。
Since EGG signals are non stationary and nonlinear, the time frequency parameters of them vary non linearly.
为了研究对流和辐射对内含环形空气间隙的某火箭发射装药的非稳态温度场的影响，对装药温度场进行了数值模拟。
In order to study effects of convection and radiation on unstable temperature field of rocket charge with annular clearance in the interior, the charge temperature field was simulated.
分析了流体的非稳态流动及颗粒的密度分布对模拟结果的影响。
The influence of non-uniform flow and particle density distribution on the simulation results was discussed.
对火箭发动机(包含发射药)的非稳态温度场进行数值模拟是确定火箭发射药实时温度的一种有效方法。
Simulating the temperature field of a rocket motor (including propellant) by numerical method is an effective way to get real-time temperatures of the rocket propellant.
一种特殊类型的、和线性弹性理论中的平面波解有点相像的非稳态运动可以建立起来。
A special type of unsteady motions which bear a resemblance to plane wave solutions of the linear theory of elasticity can be constructed.
本文描述由一个局部内热源和外部加热同时作用引起的封闭空腔内非稳态、二维、层流自然对流换热的数值分析结果。
Numerical analysis is made for the unsteady and steady, two-dimensional laminar natural convection in an enclosure caused simultaneously by the external heating and a local internal heat source.
评价埋地热油管道的的热工状况，首要的问题是计算管道周围土壤的非稳态温度场。
The calculation of the unstable temperature of the soil around pipeline is the first step to evaluate the hot oil pipeline.
为了研究低渗透砂岩的启动压力梯度，设计了一种非稳态渗流中测量压力的试验方法。
The threshold pressure gradient of low permeability sandstone was studied experimentally by measuring the pressure attenuation in an unsteady seepage flow.
但是在求解非稳态流体流动问题时，对非稳态项的处理一直是个棘手问题。
While in calculation of unsteady state problems, the transient terms are always knotty problems to deal with.
设备寿命诊断主要研究设备部件在非稳态下的温度及热应力变化规律、金属材料的疲劳特性以及部件的寿命损耗。
Equipment life-span diagnoses mainly research the variation rules of unit part in unsteady temperature and thermal stress, fatigue characteristic of metals and life deterioration of equipments.
为了分析液体推进剂火箭发动机燃烧室中存在的非稳态环境，必须很好地了解稳态状态。
To appreciate the unsteady environment existing in liquid propellant rocket chambers it is necessary that the steady state be well understood.
提出了变频蒸气压缩式制冷系统在稳态和非稳态下的两种数值模拟模型。
Two numerical models was presented to simulate the transient and steady state behavior of a vapor compression refrigeration system.
在分析既有环境噪声评价方法的基础上，根据交通噪声非稳态性的特点，提出了交通噪声综合影响指数的概念。
Based on the old evaluating methods of road traffic noise, the traffic noise integrated impact index was proposed, the unsteady characteristic of road traffic noise was considered.
本文对车用风冷发动机汽缸盖的非稳态温度进行了实测，分析了启动、突加和突减三种过渡工况下汽缸盖温度的变化规律。
This paper measured the non steady state temperature field of cylinder head in an air cooled engine. It analysed the temperature variation under transient operating conditions of engine.
发动机的非稳态燃烧分析往往需要很大的数据量，这就对发动机燃烧数据采集系统的性能提出了新的要求。
Combustion analyse of ICE under transient condition requires a large amount data. That means the performance of the ICE combustion data acquisition system must be promoted.
根据二维非稳态导热的数学模型和物理模型，编写了可视化软件。
According to the physics and mathematics model of two-dimensional unsteady heat conduction, we wrote the visualization software.
针对电能质量扰动具有非稳态、突发性的特点，提出了一种电能质量短期扰动分类和检测的新方法。
Aimed at the characteristics of power quality disturbance, a new method is introduced for detecting. classifying and quantifying the short duration variations of power quality.
ARIMA模型可以较准确地预测非稳态随机过程的时间序列。
ARIMA model can be used to predict the non stable time series with adequate precision.
为此建立了高温超高压釜体到釜腔内液压油的非稳态传热模型。
A mathematic model has been built for the unsteady heat transfer from the kettle to the oil inside.
基于信号的奇异性检测理论，利用小波分解的高频系数是否具有模极大值作为区分稳态和非稳态现象的判据。
Based on the theory of signal strangeness detect, the maxima modulus in high frequency of wavelet resolving can be used as a criterion to classify steady and non-steady state phenomena.
建立了硬质合金烧结-热等静压炉内传热的三维非稳态数值仿真模型，对炉内的温度场进行仿真与优化。
A three dimensional unsteady numerical model of cemented carbide sinter-HIP furnace was established. The temperature field was simulated and optimized with this model.
建立了硬质合金烧结-热等静压炉内传热的三维非稳态数值仿真模型，对炉内的温度场进行仿真与优化。
A three dimensional unsteady numerical model of cemented carbide sinter-HIP furnace was established. The temperature field was simulated and optimized with this model.
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