擾動 的英文怎麼說

The disturbance is sound wave, conforming to the laws of acoustic propagation in solids.

這種擾動是種聲波，它遵從在固體中聲波的傳播規律。

Moreover, addition movement of the airframe can result from aerodynamic or propulsion noise.

此外氣動力或發動機擾動也會造成彈體的附加運動。

Initial growths of disturbances are measured by means of hot - wire anemometry. due to the detected signals with low signal to noise ratio, the coherence function is used to eliminate background noise during data reduction

在擾動增長的初始階段，信號的信噪比非常地低，根據相關譜分析方法，應用相干函數，將擾動信號有效地提取出來，測量了初始擾動的增長。

Angular perturbations tend to increase instead of decrease.

角擾動傾向于增加而不是減少。

In undisturbed inertial motion, the angular momentum is constant.

在無擾動慣性運動中，角動量是恆定的。

Jupiter ' s turbulent clouds are always changing as they encounter atmospheric disturbances while sweeping around the planet at hundreds of miles per hour

木星狂暴的雲層在遇到大氣擾動以每小時數百英里的速度橫掃行星時總是在不斷變化。

The atomization process is more sensitive to disturbance than vaporization.

霧化過程比汽化過程對擾動更為敏感。

Perturbation bounds for the generalized bott - duffin inverse

逆的擾動界

A study on vegetative compensatory growth of shrub, caragana korshinskii, under different clipping treatments in disturbance environment

擾動環境中不同刈割方式對檸條營養生長補償的影響

Many of these departures are consequent on the particular nature of the disturbance.

其中許多差別是由於擾動特性引起的。

Second, the starting and stopping behaviors under disturbed condition are analyzed and calculated by using the dynamic concentrative parameter model, which gives some advice to better prescribe refrigeration system and set theoretic foundation for carrying out automatic control of refrigeration system. third, the normal running process is analyzed and calculated by means of rational matching theory, which gives some advice on how to better understand the parameter change under steady state and the affection of inlet - parameter on evaporator. fourth, the simulation software with dynamic characteristic is designed, which can be applied to calculate thernio - parameter of cryogen, air humidity and frost thickness under different initial and boundary conditions, and to carry out dynamic simulation under conditions of dryness, wetness and frostiness, at the same time, to achieve detection and simulation at any stage from starting to stopping

本文的主要內容如下： 1 ）對翅片管蒸發器結構特點進行分析，選取適當的微元控制體，就干、濕和霜工況下對每個微元分別進行傳熱傳質分析，基於經驗關系式確定霜的有關參數，對于霜工況下的霜生長建立模型，經適當假設，運用質量守恆、能量守恆和動量守恆方程建立適合動態模擬的蒸發器數學模型，為系統模擬奠定基礎； 2 ）對蒸發在大擾動下的開、停機過程，運用動態集中參數模型進行分析和計算，為更好地描述製冷系統運行的全過程奠定基礎，同時也為製冷系統實現自動控制提供一定的理論基礎； 3 ）對蒸發器正常運行過程，運用動態分佈參數和參數間定量耦合的觀點來分析和計算，為更好地了解穩態工況下各點參數的變化情況及各入口參數對蒸發器動態特性的影響即蒸發器性能對各參數變化的敏感性； 4 ）編寫翅片管蒸發器動態特性模擬計算程序，可以計算不同邊界條件和初始條件下的製冷劑熱力參數、空氣溫濕度和霜厚度分佈場，實現對翅片管蒸發器在干、濕和霜工況下的動態模擬。

Furthermore, with the fourier series technique, the disturbance is discomposed into predominant mode and high frequency harmonics, and the nonlinear stability of the nonparallel boundary layer is studied

採用fourier級數的方法把擾動波分解為基本模態和高頻諧波模態，導出非平行非線性拋物化穩定性方程。

With the fourier series technique, the disturbance is discomposed into predominant mode and high frequency harmonics. the nonlinear stability of three - dimensional disturbances for the blasius boundary layers is studied

藉助fourier級數的方法將擾動波分解為基本模態和高頻模態，研究了三維擾動的非線性邊界層穩定性問題。

The angular frequency of the disturbing force called the impressed frequency.

擾動力的角頻率稱為外加頻率。

The disturbance clearly occupies all of space.

顯然，擾動充滿整個空間。

A flying aircraft is a source of disturbance in still air.

在靜止的空氣里，飛行器是一個擾動源。

The specific nature of the disturbance is at the moment unimportant.

擾動的具體本性在當前並不重要。

Disturbance boundary of unitary pole divisor in polar decomposition

極分解中酉極因子的擾動界

Research on disturbance of the monopoly - competition power grade on cournot duopoly equilibrium quantity

市場壟斷競爭力等級對古諾產量均衡的擾動

Based on a duralumin flexible beam with piezoelectric films attached, distributed parameter modal described by partial difference equations is builded, and then turned into a set of two order systems with the method of modal analyse. state feedback control and independent modal control is investigated. and simulation of the closed - loop system with thest two methods is performed in matlab

並用模態分析的方法，將系統的偏微分方程模型轉化成了模態模型；研究了狀態反饋和獨立模態方法；進一步完善了軟體界面以及軟體功能；在實際系統中，應用狀態反饋演算法，有效抑制了懸臂梁在受到外界瞬時脈沖擾動和激振引起的一階、二階模態振動。