stationary level 中文意思是什麼
stationary level
解釋
定常級- stationary : adj. 不動的，靜止的，不變的；不增不減的，固定的，裝定的。n. 1. 不動的人，固定物。2. 〈pl. 〉駐軍。n. -ariness
- level : n 1 水平儀，水準儀；水準測量。2 水平線，水平面；水平狀態；平面，平地。3 水平，水準；水位；標準；...
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In this paper, a crank - nicolson mixed element method, a nonlinear galerkin mixed element method for the non stationary conduction - convection problems time second order accuracy fully discrete formats and a two - level mixed element method with backtracing for the stationary conduction - convection problems are presented and analyed, respectively, an error analysis are provided for the crank - nicolson method of time discretization applied to spatially discrete galerkin mixed element approximations of the nonstationary conduction - convection problems
本文分別給出了非定常的熱傳導-對流問題的crank - nicolson混合元法時間二階精度全離散格式，非線性galerkin混合元法時間二階精度全離散格式以及定常的熱傳導-對流問題回溯二重水平法。討論了時間上的crank - nicolson離散方法應用於非定常的熱傳導-對流問題的空間離散的galerkin混合元近似。 -
Light vehicle exhaust sound level under stationary conditions, measurement of
靜態條件下輕型車輛排氣聲級的測量 -
Lead - acid traction batteries ; stationary batteries, accessories ; ceramic - funnel - plug, ceramic - plug, electrolyt - level - indicator
鉛酸蓄電池.固定電池，附件.陶瓷漏斗形栓塞，陶瓷栓 -
In chapter 1, we use the p1 nonconforing mortar element to discrete poisson equation, and adopt multigrid method to solve the discrete equations, we have proven that the algorithm has a uniform convergence rate, that is, the convergence rate is independent of the mesh size and level. the multigrid method for the stationary stokes equations based on mortar mixed element method is presented in chapter 2, and the uniform convergence rate of the method independent of mesh size and level for the w - cycle is proven
第二章求解的問題是定常stokes方程，用混合mortar元來離散原方程，每個子區域上用taylor - hood有限元進行離散，離散出的方程組用w -循環多重網格方法進行求解，第四節中證明了多重網格方法的一致收斂性，即收斂率與網格層數和網格尺寸無關。 -
Measurement of light vehicle stationary exhaust system sound level engine speed sweep method
用發動機加速掃描法測量輕型車輛固定排放系統聲級 -
It also studies the influencing factors including sampling frequency, pd waveform, decline time, time intervals between pd pulses, mother wavelet, center frequency of interference, entropy threshold value and snr. in addition, it applies wavelet packet method （ wpm ） for non - stationary signal de - noising in on - line pd monitoring and analyzes the processing results under different pd waveform, sampling frequency and noise level. firstly, the curve of pd
基於小波包變換的非平穩信號消噪演算法（ wpm ）已較為成熟，本文將其應用於局部放電在線監測，通過研究其對不同局放波形、采樣率、噪聲水平下的處理效果，首次提出了理想白噪聲條件下提取局部放電信號的曲線，分析了各種因素對該演算法下信號失真的影響。 -
On the basis of some conclusion, we have proved that the schemes have second - order convergence accuracy for the time discretization, a two - level method for resolving the nonlinearity in finite element approximation of the stationary conduction - convection problems is presented
在某些已有結論的基礎之上，我們證明了這種格式對于時間離散上的二階精度。提出了一種解決定常的熱傳導-對流問題的有限元近似中出現的非線性問題的兩層方法。 -
In this paper, the current states of research about the basic theory of stationary state perturbation method are firstly reviewed, on base of them, and studied some physics issues mainly about hydrogen atom. the stark effect of the energy level ( n = 4 ) of hydrogen atom is calculated and the stark effect of three dimensional hydrogen atom is discussed by the use of the parabolic coordinates, then the perturbative matrix elements for each energy level are given
本文首先綜述了關于定態微擾論基本理論的研究現狀，在此基礎上利用定態微擾論對某些物理問題，主要是對氫原子問題展開了研究，計算了氫原子n = 4能級的斯塔克效應，並利用拋物線坐標法求解了三維氫原子的斯塔克效應，給出了氫原子斯塔克效應中微擾矩陣元的普遍公式。 -
In the recent years, as the proportion of mechanic industry in nation economy increases, the requirement for safe operation of mechanic equipment is higher and higher. due to that all kinds of technology are progressively applied to mechanic equipment fault and diagnosis, such as signal processing, pattern recognition, etc., mechanical equipment fault and diagnosis technology has been developed rapidly all over the world. the reciprocating pump as a part of mechanic equipment field takes up very important station in production department, such as the petrochemical industry. because its applications are very widely, making researchs about its fault and diagnosis has important meaning. though people have already made out some researchs and obtained some research results, but the total diagnosis level is not still very high. based on former research results, according to the strong non - stationary characteristic of the pump valve signal of the reciprocating pump, this text introduces hilbert - huang transform ( abbreviated as hht ), and diagnosed the pump valve faults of the reciprocating pump well
雖然人們已對其開展了不少研究並取得了一些研究成果，但總的診斷水平還不是很高。本文在基於前人研究成果的基礎上，根據往復泵泵閥信號的強非平穩特性，引入了希爾伯特-黃變換（簡稱hht ） ，對往復泵泵閥較好地進行了診斷。往復泵由於其結構復雜，激勵源多，故其信號為強非平穩信號，對其進行故障特徵提取和診斷比較困難，所以本文主要研究了往復泵泵閥振動信號的特徵提取方法。 -
Vecon is a video optical character recognition vocr system that can visually locate and identify stationary and moving alphanumeric and non - alphanumeric characters, colors, patterns, object size and motion in either gray - level or colour source images
慧光是一套影像光學文字辨識系統，並能讀取並識別靜止或移動中的汽車車牌號碼或集裝箱號碼。 -
Completed in phase ii, the gymnasium offers an appealing two - level, airconditioned facility. offering a broad range of fitness equipment, the gymnasium accommodates both novice to experienced athletes with steppers, treadmills, stationary bicycles, and weight training equipment. table tennis and basketball courts are also available at the gymnasium
中歐國際工商學院在深圳開設有學院聯絡處，並通過開設mba以及各類高層經理培訓項目executive education programme和公司特設課程為華南地區迅速發展的中資企業和跨國公司培養了大量國際化高級經營管理人才。
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