自由矢量 的英文怎麼說
中文拼音 [zìyóushǐliáng]
自由矢量
英文
free vector-
Due to the moving base existence of the minehunting and the frame structure characteristic of the sonar array, a new modeling thought in which the boat body coordinates is regarded as moving coordinates and the whirligig equation of sonar array compared with the self coordinates is founded on the basis of the euler ' s theorem and the coordinate transform is introduced. the dynamic equations of minehunting sonar array with the state matrix form are founded by settling the dynamic models with the vector form. so it offers theory foundation for analyzing the dynamic characteristic and designing robust control
由於獵雷艇作為動基座的存在和聲納基陣的框架結構特點，提出了以艇體坐標系為運動坐標系，運用變形的歐拉定理和坐標變換建立聲納基陣相對自身坐標系的旋轉運動方程的建模思想；將所建立的矢量形式的動力學模型展開整理，獲得了狀態矩陣形式的獵雷聲納基陣動力學方程，為系統動力學模型的實用化奠定了基礎。On the other hand, the electric field and intensity distributions of the he11 mode in the hollow fiber are calculated by using the exact solutions of maxwell equations based on the vector model, and the diffracted near - and far - field distributions of the he11 - mode output beam under the fresnel approximation are studies. we derive an analytical expression on the far - field distribution of the he n - mode output beam in free space and discuss its applicable condition. we also analyze and compare the differences between the he11 - and lp01 - mode output beams, and find that the near - field distribution of the lpoi - mode output beam is a gaussian - like one, but the near - field distribution of the he11 - mode output beam is a doughnut - like one, whereas the far - field distribution of both the lp01 - and he11 - mode output beams are a doughnut one
此外，我們把中空光纖中lp _ （ 01 ）模（標量模型）和he _ （ 11 ）模（矢量模型）的場分佈以及它們各自的輸出光束的近場與遠場分佈進行了比較，發現兩種模式的輸出光束在近場分佈有很大的區別， lp _ （ 01 ）模輸出光束在近場是一個高斯分佈，而he _ （ 11 ）模輸出光束在近場是一個中空光束，在遠場兩種模式的輸出光束分佈是基本一致的，這正是由於在中空光纖中採用了弱波導近似以後所引起的誤差。The article illuminates mainly two segments color - separation model based on three dimensions, gives a model conception on a knowledge base of unification technology and analyse and design digital prepress system from the whole on the problem of systemic requirement analysis. second, the article brings forward new data compress method based on memory stream and sets up new data structure to realize undo and redo methods based on analyzing all kinds of datas referred to on systemic based construction. because printing and dyeing cad system deals with many arithmetics on graphics ans image and production technics, the article illuminates vector conception, expatiates gray graphic vectorization and brings forward to graphic component ' s conception to enhangce the systemic stability and manipulating speed and improve graphic transmission
在印染cad系統的需求分析問題中，結合目前印染行業的發展和實際cad系統的整體構架，著重闡述了基於三維空間的二段法分色模型，提出了一體化工藝知識庫這個模型的概念，對數字印前系統做了整體的分析、設計在系統的底層架構問題上，著重分析了cad系統涉及到的各類數據，提出一種新型的基於內存流的數據壓縮方法，同時設計了自己的數據結構，用以實現系統的undo 、 redo操作，由於整個系統涉及眾多的圖形圖像演算法和實際工藝，為了提高系統的穩定性和操作速度，以及增強圖像的網路傳輸功能，在部分演算法中採用了矢量的概念，著重講解了灰度圖像矢量化，並且提出了圖像組件這一嶄新的概念。In the motion, the direction of angular momentum vector changes every moment, because there is a torque caused by gravity act on the wheel, then the wheel rotate itself and rotate around the fixed point
車輪進動實驗：在進動中，角動量的矢量方向不斷改變，是因為受到一個由重力產生的力矩，使車輪在自轉的同時又繞支點轉動。分享友人