靜不安定度 的英文怎麼說
中文拼音 [jìngbùāndìngdù]
靜不安定度
英文
unstable static margin-
To pass its threshold was to return to stagnation ; to cross the silent hall, to ascend the darksome staircase, to seek my own lonely little room, and then to meet tranquil mrs. fairfax, and spend the long winter evening with her, and her only, was to quell wholly the faint excitement wakened by my walk, - to slip again over my faculties the viewless fetters of an uniform and too still existence ; of an existence whose very privileges of security and ease i was becoming incapable of appreciating
踏進門檻就意味著回到了一潭死水之中，穿過寂靜的大廳，登上暗洞洞的樓梯，尋找我那孤寂的小房間，然後去見心如古井的費爾法克斯太太，同她，只同她度過漫長的冬夜，這一切將徹底澆滅我這回步行所激起的興奮，重又用一成不變的靜止生活的無形鐐銬，鎖住我自己的感官。這種生活的穩定安逸的長處，我已難以欣賞。The subject of this thesis is to study ironless moving coil linear permanent magnet synchronous motor and the major works in this thesis are summarized as follows : 1 ) two analytical formulas are derived by concentrated current method and distributed current method to determine the magnetic field due to pm, based on the current model of pm. besides, two method ( magnetic charge method and solution by laplace equation method ) are also introduced with comparing their advantages and disadvantages. then the effects of the motor parameters on the flux distribution are discussed
本文對空芯動圈式直線同步電動機進行了深入細致的研究，內容包括： （ 1 ）採用電流模型推導出兩種計算永磁磁極二維氣隙磁場的解析公式（集中電流法、分佈電流法） ，同時介紹了兩種永磁電機氣隙磁場計算方法（磁荷法，直接求解拉氏方程法） ，分析各種方法的優缺點，討論電機參數對氣隙磁密的影響； （ 2 ）介紹了單層同心繞組的布置方式，根據安培定律推導出空芯動圈式直線永磁同步電動機的靜推力計算公式，分析靜態力?位移特性； （ 3 ）建立空芯動圈式直線永磁同步電動機動態模擬模型，模擬不同驅動方式下電動機起動、穩態運行時電磁力、速度、位移的變化情況。Based on the pull - out tests data between geogrids and expansive soil / sands arranged by the orthogonal table l9 ( 34 ), the following conclusions are reached : 1 ) the displacement - properties of pullout tests depend on the pullout speed. the law of factors " affecting degree, which influences the parameters between geogrids and soils in the pulling - out procedure, is obtained. with the concept of " equivalent pull - out displacement ( x ) " brought forward, the whole process of pull out tests is divided into two process - " main process ( when x 1. 0 ) " and " residual process ( when x 1. 0 ) ", and three stages - static friction resistance stage, slip friction resistance stage, and residual friction resistance stage
基於正交設計表l9 （ 3 ~ 4 ）分別安排了影響因素與土工格柵膨脹土或砂土界面相互作用參數的拉拔試驗數據，獲悉： 1 ）拉拔試驗位移特性主要取決于影響因素中拉拔速率；通過分析並獲取影響因素對筋土界面相互作用參數的影響程度及其在拉拔試驗過程中的變化規律，提出了當量拉拔位移（ x ）的概念，並據此將拉拔試驗全過程劃分成「主過程（ x 1 . 0 ） 」和「殘余過程（ x 1 . 0 ） 」 ；且將影響因素對拉拔力或摩擦阻力系數的影響程度分成三階段（靜摩擦阻力階段、滑動摩擦阻力階段，殘余摩擦阻力階段） ； 2 ）不同（規范）定義的筋土界面摩擦阻力系數數值相差較大，但影響因素對摩擦阻力系數影響程度及其變化規律不會因不同（規范）定義而受到影響。Stochastic and uncertain performance of power systems is thoroughly studied with a probabilistic simulation method in this paper. based on modeling of element failure and dispatching measures, static, dynamic and integrated securities are analyzed, and hence operation states are quantitatively classified. in probabilistic static security assessment, sequential and non - sequential monte - carlo sampling techniques are applied considering time varying parameter and constraints
本文採用概率模擬方法，深入研究了電力系統運行中的隨機和不確定特性，在對元件隨機故障和調度控制措施建模的基礎上，對系統的靜態安全、動態安全和綜合安全進行概率評估，建立了電力系統運行狀態的量化分析模型。Altogether it will be found that a quite life is characteristic of great men, and that their pleasures have not been of the sort that would look exciting to the outward eye. no great achievement is possible without persistent work, so absorbing and so difficult that little evergy is left over for the more strenuous kinds of amusement
從全體看來，安靜的生活是偉人的特徵，他們的喜樂並不是世俗心目中所認定的那一種.一切偉大的成績必然由於歷久不懈的工作，其全神貫注與繁重程度，使人沒有餘力去從事狂熱的娛樂分享友人