exchange step 中文意思是什麼
exchange step
解釋
交換步驟-
The interference caused by various amino acids and some other substances in the proteose peptone medium adsorbed in the surface of the mercury film electrode can be eliminated by using exchange of medium during the stripping step
通過使用交換介質法，較好消除了由於蛋白腖細胞生長液中各種氨基酸或其它組分吸附在汞膜表面而引起的干擾。 -
Gaoqing has built the world first class program - controlled exchange net, data communication net, digital transmit net and reached the aim to share information resources in step with the world
建成了世界一流的程式控制電話交換網、數據通信網和數字傳輸網，實現了高青與世界信息資源的同步共享。 -
At the part of empirical study, this paper chooses 124 a - stock listed companies from stock exchange of shanghai and shenzhen as research samples, makes use of the step method to filter the 13 possible variables ( including 3 debt - paying ability indexes, 3 operating ability indexes, 4 profitability indexes and 3 cash flow indexes ) in analysis and finally sets up discrimimant models by fisher discrimimant rules with the samples " financial data. then this paper validates the stability of these models using the self - validation and cross - validation before analyzing the prediction ability of these models with outside - validation
實證研究部分主要以我國深、滬兩市124家上市公司為研究樣本，採用上市公司1998年至2001年的實際財務數據，運用逐步判別分析方法對擬進入模型的13個變量（包括3個償債能力指標、 3個經營能力指標、 4個獲利能力指標及3個現金流量指標）進行篩選，並根據fisher判別準則建立判別模型，在運用自身驗證法與互動式驗證法對模型的穩定性加以驗證后，運用外部數據驗證法對模型的預測能力進行了分析。 -
At the gold exchange, formed in 2001 as a substantial step in the opening of china ' s gold market, there are 149 members conducting spot transactions with renminbi
2001年，作為開發黃金市場的實質性步驟，中國建立了黃金交易所，那裡有149家會員從事人民幣的黃金現貨交易。 -
The hwtx - i gene was chemically synthesized according to its known cdna sequence, the gene was inserted into vector ppic9k which contained aoxj promotor and the sequence of a secreting signal peptide - a - factor, the cloning ppic9k / hwtx - i was constructed and confirmed by two - step pcr and dna sequence analysis, then it was transformed into host strain gs115, a his + muts cell line was screened and multicopy transformants were screened by various g418 concentrations, the multicopy transformant was named gh1. gh1 was cultivated in flasks. after 6 days of induction by 0. 5 % methanol, the supernatant was checked by 16. 5 % tricine - sds page, which showed there was a band in the position of 3. 5 - 6. 1kd, then it was isolated and desalted by ultrofiltration followed by ion exchange of cm column, after reverse phase hplc of ci8 and vacuum drying, the purified rhwtx - 1 was obtained which was proved to be correct recombinant hwtx - i by tricine sds - page, maldi - tof mass spectrometry, amino acid composition analysis, the n - terminal amino acid sequence and its biological activity, the final field of the purified rhwtx - i was about 80mg / l, accounting for 23. 6 % of it total secretory proteins
將帶有hwtx -基因的ppic9k經blgii線性化后，轉化酵母宿主菌gs115原生質體后經篩選陽性克隆並經表型鑒定為his ~ + mut ~ s酵母菌，進一步用遺傳毒素g418篩選多拷貝的轉化菌株，命名為gh1 ；將gh1甲醇酵母菌用0 . 5的甲醇誘導表達，發酵上清經90飽和度的（ nh _ 4 ） _ 2so _ 4沉澱， yw - 3 （ mwc03000 ）的超濾膜超濾，再經cm陽離子交換， c _ （ 18 ）反相hplc純化得到分子量為4kd左右的組分，其中4289 . 05的組分經質譜鑒定，氨基酸組成分析和序列測定為正確的表達產物，生物學活性表明其活性為天然毒素活性70 % ，表達量為80mg / l 。 -
First, the author introduces some present product data models including wire frame model, surface model, solid model, and feature model, and some related product data exchange standards including iges, pddi, pdes, and step. the characteristics and shortages of the product data models and the product data exchange standards are analyzed in general
本文首先介紹了當前現有的產品數據模型，包括線框、曲面、實體和特徵模型，及相關的產品數據交換標準，包括iges 、 pdes 、 pddi和step ，分析了它們各自的特點和不足之處。 -
Although there is still one step from the pegging ceiling of china ' s central bank in the spot exchange rate of the us dollar against renminbi, numerous evidences indicate that a timetable of reforms on renminbi exchange rate is far from certain and china ' s central bank has prepared to fight an extended war against speculative " hot money " in its exchange rate policies
美元兌人民幣的現貨匯率，雖然離中國央行盯住上限尚有一步之遙，但種種跡象表明，人民幣匯率改革仍遙遙無期，中國央行在匯率政策上已經作好同投機"熱錢"打持久戰的準備。 -
So the mirror and mechanical part can be fabricated in a one - level mask step by bulk micromachning of ( 100 ) with koh etching. we can on off the light path and switch the light exchange by controlling the movement of mirror
本論文使用傳統的koh腐蝕液，利用硅材料的各向異性的特點，加工出了垂直於襯底表面的微鏡結構，利用這種微鏡結構可以完成光線的切換，實現光路的開關功能。 -
Whi le the developing countries know less about the forward foreign exchange transaction and use it less oftenlv. in china, the forvvard foreign exchange transaction has just take a beginning step
在我國，遠期外匯業務剛剛起步，從1988年試辦到現在還不到二十年。 -
On the fundamental theory of 3 - d expression, the characteristics of engineering drawings are analyzed, with the difficulties of 3 - d reconstruction based on engineering drawings ; the algorithms of surface blending are investigated, as a strategy of surface blending is indicated ; the methods of avoiding data distortion are presented, after the analysis of iges and step format and their application in the data exchange among heterogeneous platforms ; the methods and process of 3 - d expression based on engineering drawing are provided
在分析了三維表達技術的基礎理論之上，總結出工程圖紙的特點和基於工程圖紙進行三維構建的難點，研究了曲面圓角的演算法，歸納了曲面圓角的方法；分析了三維表達中iges和step數據格式和在異構平臺之間數據傳遞，提出了避免數據失真的方法；總結了基於工程圖紙進行三維表達的方法，歸納了相應的方法與流程。 -
Since 1990s, e - data exchange, e - funds transfer and security certificate has been maturely step by step, especially the popularization of internet and e - commerce. the current business structure and distribution system will be changed and become the potential and active trading carrier in 21 century. e - commerce changes the traditional commodity trading concept and make the traditional taxation collection faced the new challenges
當前，以國際網際網路為媒介進行的商務活動正在全球范圍內興起， 20世紀九十年代以來，伴隨著電子數據交換，電子資金轉帳和安全認證等相關技術的日益成熟，特別是網際網路的普及，電子商務發展日益迅猛，全球電子商務即將改變現有的商業形態及其流通體系，將會成為21世紀最具潛力和活力的貿易載體，改變了傳統的實物貿易觀念，使得傳統的稅收征管面臨著新的挑戰。 -
Students from all over the world take a major step along their life ' s journey when they participate in an educational exchange
當他們參加了教育交流時全世界的學生都沿著他們生命的歷程跨出了重要的一步。 -
In its latest monetary policy report, released on friday, the pboc said it would step up use of the yuan ' s exchange rate to help bring better balance to the country ' s international payments and the domestic economy
在本周五發布的最新的貨幣政策報告中，中國人民銀行表示他將會逐步提高人民幣匯率的作用以促進中國國際收支和國內經濟的平衡。 -
On product information exchange via file exchange in the standard step
中以文件交換形式實現產品信息交換的研究 -
In this paper a numerical method for equations of transport and biodegradation in the fractured media is discussed. because the equations consist of terms related to advection, diffusion, biochemical as well as the term of exchange betwen the fracture and the porous media, it is very difficult to find their solution. in order to find more efficient method for solving these equations, several numerical methods for the equations without biochemical terms are discussed first. the numerical results show that the cubic spline method can be used to solve advection flow dominated problem which often occurred in the fractured media. then, the equation with both advection - diffusion term and biochemical term are discussed. the splitting - operator is used to decouple the advection and diffusion terms with biochemical term in the equations. the way to determine the smaller time step for solving fast biochemical terms is introduced through comparing the order of characteristic time of biochemical term with that advection ( diffusion ) term. numerical simulation results show that good agreement between analytical solution and experiment result is attained
本文討論了含裂隙介質地下水污染物輸運與生物降解非線性方程組數值求解方法.方程含有對流項、擴散項、生長、死亡、吸附、解吸、趨化和孔隙與裂隙介質界面間的交換項的非線性偶合，使演算法十分困難.本文討論了無生化過程時的幾種求解方法，數值結果表明：用三次迎風插值法對常見的對流項占優勢，且場變量有較大梯度的問題較適用.在討論有生化反應過程時，利用對流項與生化反應項的特徵時間量級估算，給出了求生化過程作用子步的時間步長估算辦法.用上述方法所得到的模擬結果與解析解、無化學反應和有化學反應的實測值對比，吻合很好 -
Finally, information and data sharing and exchange based on step have been discussed during product development process
研究了在集成產品開發中基於step的數據交換方式與系統間實現數據信息交換與共享的方法。 -
Part : study on the intercalated copolymerization and properties of exfoliated polyacrylic acid / acryl amide / montmorillonite ( paa / am / mmt ) hybrid using cation exchange resin as cation source, the montmorillonite convert to sodium form by means of the cation exchange reaction of the montmorillonite and cation resin. the two - step intercalation method by using two different organic salts was sued in the modification of montmorillonie. its effect was much better in preparing polyacrylic acid / acrylamide / montmorillonite ( paa / am / mmt )
第三章插層共聚制備剝離型聚丙烯酸/丙烯酰胺/膨潤土納米雜化材料及其熱性能研究利用732陽離子交換樹脂對膨潤土進行鈉化，二次插層對鈉化膨潤土進行處理，溶液共聚法制備了剝離型聚丙烯酸/丙烯酰胺/膨潤土（ paa / am / mmt ）納米雜化材料。 -
Step one : by the distribution of tv programs, the media resource will exchange and establish an extensive and efficient media empire
第二步：建立一個標志著高效、高質、高服務的語言及語言相關服務知名品牌。 -
However, the signing of the partnership agreement was only a first step towards a deeper cultural exchange between the two regions
不只是紙上談兵然而，簽署建立夥伴關系的只是為促進兩地區更深層次文化交流所跨出的第一步。 -
Step is and international standard which is uset to express and exchange product data by computer
Step標準是針對產品數據進行計算機可解釋的表達與交換的國際標準。
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