sfi 中文意思是什麼

This project was shortly followed by similar ones from the sfis of the provinces of jilin, liaoning and hubei and the sfi of the chinese academy of agricultural sciences

很快，吉林、遼寧、湖北省農科院土肥所和中國農科院土肥所進行了類似的試驗。

Constructing cdna expressing library of erythrocytic plasmodium falciparum from hainan : the total rna was obtained by using. triplix kit. a modified oligo ( dt ) primer ( cds ffi pcr primer ) was used in the single - stranded ( ss ) dna synthesis reaction. the ss - dna was reversely transcripted from total rna. double - stranded ( ds ) cdna was amplified by long - distance ( ld ) pcrafter the digestion with proteinase k and sfi i, the cdna with no less than 200bp was collected and purified by glass - milk kitthe library was constructed after the ligation of cdna to tiplex2 phage particle packaged with the packaging extract system in vitro. a high titer and high recombinant ratio of cdna library was constructed

構建惡性瘧原蟲海南株紅內期cdna表達文庫提取紅內期惡性瘧原蟲海南株總rna ，直接以總rna為模板使用cdna文庫構建試劑盒，首先反轉錄合成ss一dna ，再擴增合成ds一dna （ cdna ） ，對擴增產物用蛋白酶k消化及左z丁i酶切，抽提蛋白、去除rna后，用玻璃奶試劑盒純化、回收20obp以上的片斷，經與載體連接再用蛋白包裝物包裝后形成未擴增文庫，最後擴增完成惡性瘧原蟲海南株紅內期cdna表達文庫的構建。

When dicussing reliability design and reliahbaiiy ensuring methods, a new reliability calculating model of petroleum logging tools is presented, reliability assurimg technologies should be taken in petroleum logging tools and their using approaches are presented and stated from electricity design and mechanical design, reliability system model of petroleum logging tool is set up according to the latest reliability theory, reliability indexes of petroleum logging tool and their acquiring ways are discussed, the reconmended reliability indexes ( mwture, nolwnm, mtbf, mttf ) of petroleum logging tool are presented : the mean working time under rated error ( mwture ) of the new tool is obtained through experiments. when studying data processing methods, the property of gamma - ray signal is stated and the type of it ' s measuring error is examined using statistical method, the basic theory of digital filtering and the basic situation of digital filtering methods are introduced and analyzed, the factors affecting digital filtering effect to gamma - ray signal and the effect of digital filtering to logging curve are analyzed, the evaluting criteria ( rvi, rmse, sfi ) of digital filtering effect are set up from two aspects, named as real value acquiring of steady section and the formation boundary checking and processing, the related filtering methods and examining methods are given out. the design methods of digital filter used to process gamma - ray signal are discussed, the mixed filtering scheme of natural gamma - ray log is presented, the realization ways are discussed. the selective filtering system and it ' s realization flow are given out through quantitive reseaching to part of digital filters, three new filtering sheme will be used to process gamma - ray signal in era2000 logging system

在探討可靠性設計與可靠性保障技術時，提出了石油測井儀器的可靠性計算新模型，從電氣和機械兩個方面，提出並闡述了應採用的可靠性保障技術及其使用方法：根據最新可靠性理論，建立了石油測井儀器的可靠性系統模型，探討了石油測井儀器的可靠性指標及其獲取途徑，提出了推薦使用的石油測井儀器可靠性指標（ mwture ， nolwnm ， mtbf ， mttf ） ；通過試驗，得到了所設計儀器的穩定工作時間（ mwture ） 。在研究數據處理方法時，闡述了伽瑪信號的特徵，對測量誤差類型進行了統計檢驗；介紹了數字濾波的基本理論、數字濾波方法的概況，並進行了分析；對伽瑪信號數字濾波效果的影響因素及其對測井曲線的影響進行了基本分析；從獲取平穩段真值、地層邊界的檢測與處理兩個方面，建立了數字濾波效果的評價準則（ rvi ， rmse ， sfi ） ，給出了相應的數字濾波方法及效果評價方法；探討了自然伽瑪信號數字濾波器的設計方法，提出了適合自然伽瑪測井的混合濾波方案，探討了混合濾波方案的實現途徑；通過對部分數字濾波方法的定量研究，給出了靈活可選的數字濾波系統構成及實現流程；提出的三種濾波方案，將用於era2000成像測井系統，對自然伽瑪測井數據進行濾波處理。

According to the characteristics of the plexiglas, using the principles of the stress field intensity ( sfi ), a local stress approach for the evaluation of the fatigue life of the plexiglas structures is proposed

根據有機玻璃特點，利用場強法原理，建立了有機玻璃裂紋形成壽命的局部應力估算方法，採用該方法估算得到的玻璃螺栓孔處的疲勞壽命與邊緣連接件疲勞試驗結果吻合較好。

Sfi sequential fuel injection

順序式燃油噴射系統

Sfi sequential electronic fuel injection

順序式電子燃油噴射

Yes, for the number was outstanding and the participant were co - operative considering the finacial incabality of cny, sfi and naya nigeria

你是否認為公開論壇因積極進行當地、國家和國際的行動給予參與者啟迪而十分有效？你以後向個人或集體的參與什麼特別的活動呢？

No processing fee. sfi will hold your commissions until you wish to receive them, at which point you will need to select one of the options above

累積我的獎金（不須任何費用- sfi幫你免費保存直到你想要領取獎金為止）以上任選一種方式。

You joined sfi ( strong future international ) and this means you are serious about building a successful and profitable global work at home business

您加入了sfi （強未來國際） ，並且這意味您對在家建立成功和有益的全球性工作事務是嚴肅的。