空心圓筒 的英文怎麼說
中文拼音 [kōngxīnyuántǒng]
空心圓筒
英文
hollow cylinder-
In part two, the optical spatiotemporal pattern in ring optic cavity is investigated. using delay feedback with spatial perturbation method, the system shows roll, square, hexagon, homocentric circle, " honeycomb " and " snowflower " pattern with different spatial perturbation functions. different patterns can be coexist and compete each other with the same perturbation function, which is the new character of this optical system with delay feedback
第二部分，利用延時反饋的空間微擾方法研究了環形腔中二能級介質的光學時空斑圖的控制，在不同的微擾函數作用下，出現了滾筒狀、四方形、六角形、蜂窩狀、同心圓以及「雪花」狀等不同的斑圖，並且在相同的微擾函數下張勝海:博士學位論文出現了不同斑圖之間的競爭，這種競爭是我們發現的這一具有空間微擾的延時反饋非線性光學系統光學斑圖的新特徵。Compared with the normal flat - plate floor, the cast - in - place reinforced concrete hollow flat - plate floor has two special characteristics. to produce the hollow floor, the hollow columns are pre - buried in the floor. there are concealed wide - flat beams between the frame columns
和普通平板無梁樓蓋相比，現澆鋼筋混凝土空心板無梁樓蓋有兩個突出的不同點，一是在樓板內預埋空心圓筒形成空心樓板，二是在框架柱之間設有暗扁梁。Through the analyses of electromagnetic system of configuration of hollow metal cylinder by electromagnetic vector potential, an eddy current field math model is built by triangle cell, this article has researched power frequency to eddy current density, permeation depth and the effect of skin effect
文中通過對一個空心金屬圓筒結構的電磁系統進行分析，以電磁場矢量位有限元法為基礎對磁場強度、渦流密度進行了計算求解，採用三角形單元建立了渦流場數學模型，研究了電源頻率對渦流密度、透入深度及集膚效應等場量的作用影響。Production in optical engineering - diamond impregnated core drills - part 2 : with fitting cylinder
光學工程生產.鑲金剛石的空心鉆.第2部分:帶裝配圓筒分享友人