例句與造句

1. Methods of electrode designation for electron optics system of electron beam tubes
   電子束管電子光學(xué)系統(tǒng)電極命名方法
2. Main works are as follows : 1 . to design electron guns with plane cathode according to high current electron optics theory
   主要工作如下: 1 .根據(jù)強(qiáng)流電子光學(xué)理論,在填充等離子體條件下,設(shè)計(jì)平面陰極電子槍。
3. The main works of the dissertation are listed as following : fist , know the theorical basis and software use of egun , magic . represent the theory and calculation method of electron optics
   本文主要工作如下:掌握egun 、 pic粒子模擬程序兩種軟件設(shè)計(jì)電子槍的理論基礎(chǔ),熟悉軟件使用,闡述電子光學(xué)系統(tǒng)的基礎(chǔ)理論與計(jì)算方法。
4. The methods that will be discussed are based on concepts derived from various fields , namely electron optics , the interaction of electrons with crystals , elasticity theory , crystal defect theory and crystallography
   我們要討論的途徑是以源自多種領(lǐng)域的觀念為基礎(chǔ)，也就是電子眼，電子和晶體之間的干擾，彈性理論，晶體缺陷理論和結(jié)晶學(xué)。
5. However , the manufacture process of twt is so complicated that many kinds of subject , such as electron optics , magnetics , cathode electronics , microwave electronics , electronmagnetic fields theory , material science , mechanics and calorifics are involved in
   行波管的研制涉及到電子光學(xué)、磁學(xué)、陰極電子學(xué)、微波電子學(xué)、電磁場理論、材料學(xué)、機(jī)械與熱分析諸多學(xué)科,工藝過程十分復(fù)雜。
6. It's difficult to find electron optics in a sentence. 用electron optics造句挺難的
7. Plasma technique was introduced in the research of high power microwave ( hpm ) sources in recent decade . the performance of hpm sources is improved much by filling plasma which is promising in this field . filled - plasma travelling - wave tubes ( fptwt ) is a part of them . it is the main task of this paper to research and design fptwt ' s electron optics system and simulate it
   近十年來,在高功率微波的研究熱潮中,引入了等離子體技術(shù)。引入等離子體能顯著改善高功率微波源各方面的工作性能,已經(jīng)成為高功率微波源發(fā)展一個(gè)頗有前景的新方向,等離子體行波管即是其一個(gè)典型代表。
8. A highly efficient numerical algorithm by using multi - grid method ( mgm ) is introduced to solve the three dimensional field distribution in the present paper . formulae of the restriction and prolongation in mgm computation is deduced , and a 3d program of mgm is accomplished , which can solve the field distributions in electron optical systems for various electrostatic lenses . the 3d field distribution in an electrostatic concentric spherical model is tested with mgm algorithm and an algorithm based on finite difference method ( fdm ) respectively . comparing these two results in view of computational efficiency and computational accuracy , it appears that mgm is superior to fdm in solving electrostatic field distribution for the electron optics problem . this paper shows that the 3d field computation using mgm greatly improves the computational efficiency of field distributions in electron optical systems and shortens the computational time
   本文將一種高效率的數(shù)值計(jì)算方法? ?多重網(wǎng)格法引入三維靜電場分布的計(jì)算，多重網(wǎng)格法利用限制和延拓可迅速求得滿足精度要求的場分布.研究了求解各種靜電透鏡電子光學(xué)系統(tǒng)三維場分布的多重網(wǎng)格法程序，驗(yàn)算了靜電同心球模型的三維場分布.通過與目前在場計(jì)算中常用的有限差分法進(jìn)行比較，可以看出多重網(wǎng)格法的計(jì)算效率和計(jì)算精度優(yōu)于有限差分法.本文表明利用多重網(wǎng)格法計(jì)算三維場大大提高了場分布的計(jì)算效率，縮短了計(jì)算時(shí)間，因此為后續(xù)計(jì)算打下了良好的基礎(chǔ)