magnetic history 中文意思是什麼
magnetic history
解釋
磁化史-
The magnetic north and south poles have shifted before in the course of the planet ' s history - one result being the last ice age
在地球的歷史進程中地磁北極和磁南極已經轉換過-一種結果就是最後的冰河時期。 -
For starters, the core ' s motion could help explain why magnetic north and south periodically wander or reverse over earth ' s history
就像起動器一樣，地核的運動有助於解釋南北磁極周期性變換或歷史上地球磁極的翻轉原因。 -
Sony used racoon hair brushes to daub magnetic powder over the paper to produce what it cally " soni tape ", starting its history as an audio - video products maker
索尼使用浣熊毛做成的刷子將磁粉塗抹在紙上，生產出稱作「索尼帶」的東西，開始了其作為音像產品製造商的歷史。 -
Topics include : planets, planet formation ; stars, the sun, " normal " stars, star formation ; stellar evolution, supernovae, compact objects ( white dwarfs, neutron stars, and black holes ), plusars, binary x - ray sources ; star clusters, globular and open clusters ; interstellar medium, gas, dust, magnetic fields, cosmic rays ; distance ladder ; galaxies, normal and active galaxies, jets ; gravitational lensing ; large scaling structure ; newtonian cosmology, dynamical expansion and thermal history of the universe ; cosmic microwave background radiation ; big - bang nucleosynthesis
課程的主題包含了：行星、行星形成；恆星、太陽、正常的恆星、恆星形成；恆星演化、超新星、緻密天體（白矮星、中子星及黑洞） 、波霎、雙x -射線源；星團、球狀及疏散星團；星際介質、氣體、塵埃、磁場、宇宙射線；距離階梯；星系、正常及活躍星系、噴流；重力透鏡；大尺度結構；牛頓宇宙學、宇宙的動力膨脹及溫度發展歷史；宇宙背景微波輻射；大霹靂核合成。 -
As the main products series of non - leak pumps, the market of magnetic force pump is very large, centuries - old history of magnet utilizing and abundant thulium contain establish stable bases of thulium magnet couplings " exploitation and applying of magnetic force pump driving technology
磁力泵作為無泄漏泵的主要產品系列，市場前景非常廣闊，我國具有悠久的永磁利用歷史和巨大的稀土儲藏量，為稀土永磁聯軸器的開發和在磁力泵傳動技術中的應用奠定了堅實的基礎。 -
The research history of fullerene and cnts was short, but their characteristics have great value in practical application. metallic nano - particles have different crystal orientation with different synthetical techniques. their special mechanical, optical and electrical properties will drive the development of magnetic materials, electronic materials and optical materials et. al
納米金屬粒子在不同的制備工藝下具有不同的結晶形態，而且其具有的特殊的力、熱、光、電、磁的性質，引起了在磁性材料、電子材料、光學材料、高緻密度材料等方面的應用。 -
The time shift marked the time in history when the planet entered a new sequencing of energy that after a magnetic pole shift in 2000, will be complete in december, 2012
時間替換標志著2000年磁極轉換後行星進入新的時間頻率里，會在2012年12月完成。 -
The first part of this thesis includes the following information : ( 1 ) the significance of materials and the progress in every fields of material science in recent years ; ( 2 ) the history of magnetic material and the classification of magnetic material ; ( 3 ) the emergency and the classification of organic magnetic materials as well as the significant progress in the field of ferrocene polymeric magnet recently ; ( 4 ) introducing die development and the status quo of dielectric polymer and discussing the four parameters which are used to characterize the dielectric beheaviour of material, these parameters mclude dielectric constants dielectric loss ^ electric conductivity and breakdown strength
本文在開頭部分簡單講述了以下內容了： （ 1 ）材料的重要性以及近些年來材料業各個領域的發展； （ 2 ）磁性材料的發展史以及磁性材料的分類； （ 3 ）有機磁性材料的出現、有機磁性材料的分類和近些年來有機金屬磁性材料尤其是二茂鐵高分子磁體領域所取得的重要進展； （ 4 ）高分子介電材料的發展與現狀，對表徵材料介電性能的四個重要參數即介電常數、介電損耗、電導率和擊穿強度做了比較詳盡的論述。 -
First of all, the development history and present situation of magnetic - switchgear are reviewed, the significance and importance to develop the measurement and control system ( mcs ) of magnetic - switchgear are also introduced
論文總體介紹了真空磁力控制站的發展與現狀，闡述了研究該系統的重要性和必要性。
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