lnm 中文意思是什麼
lnm
解釋
非線性力學國家重點實驗室-
Top of the list is steel baron lakshmi mittal who owns the world s second largest steel company lnm
位居排行榜首位的是鋼鐵大王lakshmi mittal ，他擁有世界上第二大的鋼鐵公司lnm 。 -
When the sensing head equipped with rubber 4 # with diameter of 8mm and length of 12mm is pressed and its incipient wavelength shifts 0. 5 - lnm, its alarming level can be set as 1nm, and its response tune for petrol is 5 minutes
用直徑為8mm 、長為12mm的4 # （上述配方）橡膠棒裝備該傳感頭，傳感頭的初始波長預漂0 . 5nm ? 1nm時，傳感器的漏油報警限可設定1nm ，對汽油的溶脹響應時間為5分鐘。 -
Abstract : numerically solving equations governing the variations of the beam size and the curvature of wave front in the logarithmically nonlinear media ( lnm ), the propagating characteristics of gaussian beams have been described in detail
文摘:根據對數型非線性介質中高斯光束的束寬和波陣面曲率變化所滿足的耦合方程，採用數值計算對高斯光束的傳輸特性進行了詳細的分析。 -
To illustrate the superiority of this type of transition, the author adapted the local normal mode ( lnm ) based on couple - mode theory to explain the coupling between two lowest order modes along the transition. for the two important parameters, propagation constants difference between the two modes apy and mode coupling coefficient cy, which denoting power coupling between lnms, the approximation expressions using structure parameters were worked out. then the author compared three typical different transitions according to the demanding of power coupling, at last concluded that the parabolic - type transition can transport the light in shortest length with lowest loss
對于表徵局部標準模之間功率耦合的兩個重要的參數_ （ ij ） （模式傳播常數差）和c _ （ ij ） （模式耦合系數） ，推導了用器件結構參數表達的近似公式，然後根據功率耦合的需求，在常見的三種不同輪廓的過渡區之間進行了比較，得出了拋物形輪廓過渡區能夠使光束在最短尺寸內以最低損耗通過波導的結論。
分享友人