梯形近似 的英文怎麼說
中文拼音 [tīxíngjìnsì]
梯形近似
英文
ladder approximation-
Not far from leng shui keng is chutzuhu " bamboo lake ", where a lake was created in prehistoric times when a volcanic eruption sent debris rumbling into a valley, where it dammed up a stream. chutzuhu in recent years has become noted for its many flowers, especially the calla lilies that bloom every year from december
冷水坑附近的竹子湖是火山堰塞湖，近來成為花卉栽種區，每年的十二月起是海芋盛開的季節，朵朵素白色的花朵在錯落的梯田上形成一片花海，一陣淡淡的霧氣飄過，疑似人間仙境。For the first time we investigate detailedly on the theory of the conductor - centered arbitrarily - shaped helical groove structure. we divide the arbitrarily - shaped helical groove into many consecutive small rectangle area to approximate the original groove. the recurrence relation of the admittance is obtained
首次對具有中心導體軸的任意槽形螺旋槽結構的普遍理論進行了研究，通過以多層矩形階梯來近似代替任意形狀槽的邊界的方法，同時對導納的遞推關系進行了詳細的推導。Result of numerical simulation shows that the grads of continuous phase " s velocities decreases with the presence of microbubble of which the diameter is 100 / / w, the profiles of air volume fraction in the boundary layers is similar to triangle or echelon, affected by interaction among the particle, there is a saturated air fraction, within the scope of saturated air fraction, increasing the air injection ratio can accrete the friction reduction ratio, under the condition of same air injection ratio, the free - steam velocity is larger, the effect of friction reduction is worse
計算結果表明，直徑為100 m的微氣泡能減小近壁面連續相的速度梯度；微氣泡在邊界層中的濃度分佈近似為三角形或梯形分佈；受粒子間相互作用的影響，存在一飽和濃度；減阻率隨噴氣量的增大而增大，直至飽和噴氣量，此後，增大噴氣量，壁面摩擦阻力變化不大；相同噴氣量下，來流速度越大，減阻率越低。Trapezoid curve method is adopted for frequency control of stepper motor. and a rough speed control method of servo motor is developed. kinematics modeling of rover in manipulation is presented
控制系統軟體部分採用梯形曲線對步進電機進行升降頻控制，同時實現了對舵機的近似速度控制。The profile of arbitrary shaped groove is approximated by a series of rectangular steps and the " hot " dispersion equation of the coaxial arbitrary - shaped - groove slow - wave structure is derived by the self - consistent theory
摘要用階梯近似的方法分析任意槽形加載的圓波導慢波系統中的場，採用自洽場理論，得到了任意槽形周期加載圓波導慢波系統在小信號條件下的「熱」色散方程，並對結構參數對小信號增益的影響情況進行了研究。This is due to the incompatibility of helium with the matrix atoms. but on the whole, the trend of helium distri bution by the determination was similar to that by calculation. and the depth which helium - 3 could reach in both samples were 350 microns and 500 microns respectively
在金屬鋁中氦行為的理論研究中，基於密度泛函理論、廣義梯度近似、贗勢平面波方法，計算了單個he原子在金屬鋁中的各種能量數據，包括各種he原子-缺陷的形成能、遷移能、束縛能以及離解能數據。2 ) fourier amplitude spectrum analysis : ( 1 ) the fourier amplitude spectra decrease with the increment of depth ; and the components of fourier spectrum become complex in near - surface. ( 2 ) the fourier amplitude decrease faster in shallow soil level, and smaller in deep soil level. ( 3 ) compared with the deepest bedrock fourier spectrum, spectral components of higher than 5 hz decrease with depth decrease
2 .地震動傅立葉振幅譜沿深度的變化規律（ d隨著深度的增大，傅氏譜振幅逐漸減小;越接近地表傅氏譜的頻譜成份越多，形狀越復雜;傅氏譜振幅值在淺層沿深度的下降梯度較大，在深層下降較小; 「土層/基巖」場地的基巖內_匕下兩測點的地震動頻譜沿深度幾乎不變，傅氏譜十分相似; d基巖以上的土層測點，高於shz的高頻成分減少。The mausoleum is square in shape, with flat top and ladder - shaped profile
陵墓近似方形，頂部平坦，腰略呈階梯形。In this part, response spectrum and fourier amplitude spectrum are studied, the main results are as follows : 1 ) response spectrum analysis : a ) absolute acceleration response spectrum ( sa ) : ( 1 ) in general, response spectrum decrease with depth, for m < 4. 5, the shape and the predominant period of each response spectrum in different depths are similar : the variation of spectra with depth focus on near - surface level ; the normalized spectra are similar to each other, except the predominant perk value in middle depth of some earthquakes is higher than other depth
地震動反應譜沿深度變化的規律（ l ）加速度反應譜（ s 、 ）沿深度的變化規律一般，加速度反應譜（ s 。 ）隨深度的增加而減小。震級較小時，不同深度各測點的反應譜形狀很相似，卓越周期基本一致;淺層處反應譜沿深度的變化梯度較大;深層處反應譜大小比較接近;強震時，反應譜形狀在短周期有較小差別，長周期逐漸接近。Zhu has studied unconstrained optimal problem by combining optimal path and modified path with nonmonotonic trust region methods in [ 9 ], and the use of l2 norm by trust region method in [ 1 ] in seeking the solution of unconstrained optimization has formed simple approximate trust region path, which enlightens us to solve nonlinear programming problem by curvilinear path
朱德通在文[ 9 ]中將最優路徑和修正梯度路徑與非單調信賴域方法相結合討論無約束優化問題，且文[ 3 ]中用信賴域方法解無約束優化問題取l _ 2范數形成了形式簡單的近似信賴域路徑，此類思想啟發作者用弧線路徑來解決約束優化問題。分享友人