diffusion n. 1.散布,發(fā)散。 2.傳播,普及。 3.冗長。 4.【化學】滲濾。 5.【物理學】擴散,漫射。 the diffusion of knowledge 知識的傳播。 diffusion of speech 演說的冗長。 diffusion of light 光線的漫射。
The diffusion mechanism of - catechin on ion exchange fiber 兒茶素在離子交換纖維上的擴散機理研究
A diffusion mechanism whereby atomic motion is from interstitial site to interstitial site 晶體擴散機制的一種。間隙原子由一個間隙位置遷移至鄰近的間隙位置所構成的擴散。
The diffusion mechanism wherein net atomic migration is from lattice site to an adjacent vacancy 一種擴散機制,這時候原子的凈遷移過程是從晶格結點位置移動到鄰近的空位中。
Based on studying element motion theory and geological , this paper studied the diffusion mechanism of gas in strata 在分子運動學理論及地質(zhì)條件研究的基礎上,研究了天然氣在地下擴散機制。
Abstract : the diffusion mechanism for the diffusion migration with electromigration together was discussed . the differential equations for describing the diffusion mechanism were obtained 文摘:討論了擴散遷移與電致遷移共同作用時的擴散機制,導出了可描述這一過程的微分方程
In succession , the author specially studies the diffusion mechanism in the course of currency crisis evolution , and puts forward several hidden currency crisis contagion channel suitable to the opening level and developing condition of the finance market of china 接著,針對當代貨幣危機的特點? ?傳染性,專門研究貨幣危機演進中的擴散機制,并提出適合我國金融市場開放程度和發(fā)育狀況的危機傳染潛在渠道。
Reacting temperature had much effect on product purity ; while reacting time above 1150c had little effect on microstructure ; the salt content had some effect on microstructure , it was appropriate that the proportion of the salt and the raw materials was 1 : 1 . the growth process of batio3 powders was controlled by diffusion mechanism . in the present paper , the synthesis of srti03 proceeded through two steps 合成溫度對產(chǎn)物純度有很大影響;在一定溫度下保溫時間對產(chǎn)物純度影響不大;隨著反應溫度的升高和反應時間的延長,粉體顆粒的尺寸有所增大,但增加不大;鹽的含量對粉體形態(tài)有一定影響,在鹽與反應物的質(zhì)量比為1左右比較合適。
The author analyzes urban spatial form ' s random quality and rise and fall phenomenon , and then calculates its fractional dimension value . the author also studies the evolution mechanisms exist in xi ' an urban spatial structure ' s evolution which are self - organization and organization mechanism , agglomeration and diffusion mechanism , ecological mechanism 分析探討西安城市空間結構演化中的自組織與他組織、集聚與擴散、多系統(tǒng)協(xié)同等演替機制,提出西安未來城市空間結構的發(fā)展具有可持續(xù)化、生態(tài)化、信息化、注重歷史文脈繼承與保護、開放性與區(qū)域化等趨勢。
As to epoxy / toa / org - mmt system , the reaction order was 0 . 9 and active energy was 66kj / mol by kissinger method ; and a similar result was obtained by ozawa method . the curing reaction was controlled clearly by diffusion mechanism in the later stage of curing reaction without addition of org - mmt , which leads to the increment of active energy with extend of curing ; as to the curing system with addition of org - mmt , the value of active energy was always kept the same level , which can be explained by the catalytic function of amine salt inserted in the galleries of org - mmt 對于環(huán)氧桐油酸酐有機蒙脫土固化體系用kissinger方法看到固化體系的反應級數(shù)均為0 . 9左右,表觀活化能值為66kj mol ; ozawa方法的處理結果與之近似,但從ozawa方法可以看到未加入有機蒙脫土的體系在反應后期固化反應明顯受擴散控制,表現(xiàn)為活化能隨固化程度的增加而增加;而加入有機蒙脫土的體系,其表觀活化能則自始至終表現(xiàn)的較為均勻。