major variable 中文意思是什麼
major variable
解釋
主要變量-
The numerical computation for the secular variable of the semi - major axis, solar distance at perihelion, orbital periods and longitude of perihelion has been made for fifteen meteor streams by using the solution of gylden - meshcherckii equations
利用g - m型變質量天體軌道根數變化方程的一階和二階解對15個流星群軌道半長軸、近日點距離、軌道周期和近日點經度因太陽質量損失造成的每世紀的長期改變效應做了數值計算，並得出計算結果。 -
The stamps feature the tsing ma bridge, a major hong kong landmark that has won international acclaim for its architectural design. while maintaining the inaugural format as per their first issue, the four stamps produce different printing effects. variations are made by using optical variable ink for the texts of " $ 10, hong kong, china ", or by the modification of the background colour
郵票仍是首日發行時的青馬大橋香港的一個主要地標，舉世矚目的一座跨海吊橋分別只在於郵票上以不同顏色的幻變油墨印刷的文字： $ 10中國香港及hongkong ， china ，又或郵票的底色有別于首日發行時的顏色。 -
The env protein deduced from env gene encodes the hydrophilic surface protein ( su ) and the hydrophobic transmembrane domain ( tm ) that determine the specific interaction between virus particles and cell surface receptors during retroviral entry. the su of retroviruses is a highly variable genetic element, containing receptor binding sites and major antigenic determinants. exjsrv - specific dna probes were derived. by using these dna probes in tissue hybridization. we successfully identified jsrv mrna expression and proviruses dna in sheep lung tissues infected with jsrv and control group has no postive signals, validating the use of exogenous virus - specific dna probes in the analysis of oncogenic proviral integration sites and identification of integrated exogenous proviral sequences
用地高辛隨機引物法標記exjsrv特異的env片段，制備探針，原位雜交檢測spa肺組織中的rna及前病毒dna ，結果表明spa患羊肺組織內有jsrvenv基因mrna的表達，同時也檢測到了前病毒dna ，而相應的陰性對照卻無陽性信號，證實外源性病毒特異的dna探針在致瘤性前病毒的整合位點和整合的外源性前病毒的檢測中具有可信度。 -
The main task of the paper is to control a major variable pitch wind turbine generator with intelligent controller so as to make it run well
本論文是用智能控制器來實現大型變槳距風力發電機的電控系統。 -
After a careful comparison we found : ( 1 ) rotating the coordinate system around the z - axis for each event is necessary for the relaxation of the correlation between thrust ( or sphericity ) major - minor frame and the direction of the first hard gluon emission. ( 2 ) the horizontal factorial moments ( hfm ) are equivalent to the vertical ones ( vfm ) only after cumulant - variable transformation. therefore, in the study of nonlinear phenomena in high energy collisions the hfm can be used only in combination with the cumulant variables
工jlnfy4ww ； 6標系與發射第一個硬膠子之間的關聯效應，從而觀察到全部強度的動力學起伏；證明了：只有在引入累積變量以後，橫向矩才等於縱向矩，從而也才等效于幾率矩，困而只有在這時，橫向矩才能被使用；論證了：對eb對撞末態粒子系統動力學起伏的研究只能在全相空間進行，而不能用限定的相空間，因而只能採用丟掉最初的一個或幾個點的方法消除動量守恆對相空間標度特性的影響。 -
This paper studies and designs a variable frequency speed regulation system applied to induction motors by means of votating speed difference frequency fuzzy control. the general scheme of the system is presented. circuits and software are designed for the major parts of the system such as constant magnetic linkage control frequency converter and votating speed difference frequency fuzzy controller
本文對異步電動機轉差頻率模糊控制變頻調速系統進行了較為詳細的研究和設計，給出了系統的總體方案。對于系統的主要組成部分? ?恆磁鏈控制變頻器和轉差頻率模糊控制器進行了設計。 -
Its major task is to switch o d, to guide tracking, to record, display and print real - time tracking information, to carry out automatic detection of system faults, to receive standard outer time signal, to produce simulative time, to monitor and process some variable from the radar system, etc. with the rapid development in national tt & c sector, the former digital system is showing more and more malfunctions and getting increasingly incompetent to the requirements of new tt & c missions
其主要任務是：軸角至數字的轉換編碼；數字反引導；實時跟蹤測量信息的記錄、顯示、列印；對系統進行故障自動檢測；外時統信號的接收處理和模擬時統信號的產生；對雷達系統中某些狀態量和模擬量的監視和處理等等。 -
Second, the paper introduces the modeling of the major variable pitch wind turbine generator in detail and presents the simulink result of the major variable pitch wind turbine generator without controller. third, in the third chapter the paper puts forward a control tactics of the major variable pitch wind turbine generator. for comparing conveniently with the neural networks controller and the fuzzy controller that have been designed in the later chapters, this paper gives the simulink result of the major variable pitch wind turbine generator with pid controller in brief
首先，簡單地介紹了控制理論、神經網路和模糊控制的發展概況以及風力發電機的現狀；其次，詳細地介紹了大型變槳距風力發電機的模型的建立，並給出了風力發電機系統的開環模擬結果；接著，在第三章提出了大型變槳距風力發電機的控制策略，為了便於和後面設計出的神經網路控制器和模糊控制器相比較，本論文還簡要地作出了pid控制器的模擬結果；然後，分別設計出了神經網路控制器和模糊控制器並模擬出了令人滿意的結果。 -
The result shows that the high degree of homology of e2 sequences and 426 residues amino acid sequences existed in the strain hclv, hcv - jn, hcv - yc, fc and the epitopes between the four strains are not variable obviously by analysising the variation of some main amino acid residues substitutions of e2 major antigenic domains, confirming initially immunization with hcv vaccine strain can resist challenging of field strains
結果發現， hclv與fc間核苷酸及氨基酸序列的同源性分別為98 . 3 、 99 . 2 ；兩個野毒株與hclv和fc株之間的同源性也分別在98以上，與alfort株的同源性最低，分別在83 、 89左右。據此，可推測hclv 、豬瘟野毒株和c株之間的e2基因序列及氨基酸序列無明顯差異。 -
As far as sustainable development theories are concerned, this article summarizes the sustainable development conception, the studying orientation of its, and the economic studying trends, etc. then, in the aspect of asd, this article expounds its idea, studying content and studying trait, etc. on the basis of that, the author sets forth the theories and practical significance of studying asd in the mid and west region of china from the strategy adjustment of china regional development, economic globalization as well as intellectual economic developing trends, etc. ii. analyse and grasp major factors and outstanding barriers of asd in the mid and west region of china as a whole. after qualitative and quantitative analysis, we conclude the superiority of asd in the mid and west region mainly embodies many ways, such as abundant land resources, munificent agriculture organism resources, variable natural climates, the central government ' s readjustment of development strategy as well as the historical chance that new economic background gives, etc
在此基礎上，從中國區域發展戰略調整、經濟全球化、知識經濟發展趨勢等方面來認識中西部地區農業可持續發展的背景。 （二）從總體上分析和把握中西部地區農業可持續發展的主要影響因素及突出障礙。通過定性與定量分析后認為，中西部地區農業可持續發展的優勢主要體現在土地資源較豐富、農業生物資源條件得天獨厚、自然氣候千差萬別、國家發展戰略調整及新經濟背景提供了歷史機遇；主要障礙體現在經濟社會發展與農業爭地矛盾突出、水土流失十分嚴重、土地沙漠化加劇、水資源的困擾、農業生態環境破壞嚴重、加上體制與觀念約束等。 -
The low - ti series show variable degrees of nb - ta depletion in primitive mantle - normalized spidergrams with slightly enriched to depleted nd isotopic compositions, whereas the transitional series exhibit similar geochemical features to emii - oib and have transitional characteristics between the high - ti and low - ti rocks. all three groups show no continuous shift in major and trace elements and cannot be regarded as different phases during magma differentiation process. on the basis of normalization to mgo = 8 %, the high - ti diabases have the lowest sig, nag and highest tig and peg
通過詳細的巖石學和元素-同位素地球化學研究，這些巖石具有各自不同的地球化學特徵，其中高ti系列的低la nb 、 zr nb比值和虧損的nd同位素組成顯示其類似於oib的特徵，過渡ti系列則顯示出emii - oib的特徵，而低ti系列則高la nb 、 zr nb比值和變化的nd同位素組成顯示出一定比例的富集巖石圈地幔或地殼物質的參與。
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