etching acid 中文意思是什麼
etching acid
解釋
氟氫酸-
The relationship between capacitance and corrosion conditions in the enlargement of tunnels justifies the latter competition mechanism the varied etching conditions were implemented by enhancing the passivating characteristics and viscosity, changing the a13 + concentration, temperature of etchants and current pulsation. passivating acid in the etchant is conducive to the instant passivation of exposed areas on the foil surface, and hence sustains the balance of competition between aggressive anions and passivators, providing pit nucleatiori sites continuously
通過侵蝕液中添加草酸、硫酸、乙二醇，改變侵蝕液al ~ （ 3 + ）濃度和電流紋波等方法，研究了不同的侵蝕條件對隧道孔形貌和比容的影響，結果表明：草酸和硫酸既保護了鋁箔表面又促進了隧道孔孔壁的迅速鈍化，增加發孔密度。 -
Method of oxalic acid etching test for stainless steels
不銹鋼用草酸劑侵蝕試驗方法 -
This paper mainly aims at the strategic demands for large - aperture lightweight mirror proposed by high - tech development. its main research contents are : select material blank for lightweight mirror according to physical and chemical properties of optical glass ; analyze and calculate the deformation quantity of the mirror with finite element method ; design and optimize mirror body structure of 400 lightweight plane mirror and 450 lightweight spherical mirror, analyze glass cutting principle, design specisl - use grinding wheel structure, select reasonable technological parameters to implement the processing of weight reduction holes on 400 plane mirror ; analyze etching mechanism of hydrofluoric acid, look for the technological parameters such as the optimal acid concentration and etching time etc. ; eliminate the stress of weight reduction holes and micro - cracks on 400 lightweight plane mirror ; discuss the processing principle and
本論文的研究主要是瞄準國家高技術對大口徑輕型鏡的戰略需求而開展的。主要研究內容是：根據光學玻璃的物理與化學性能，選擇輕型鏡坯材料；用有限元法對鏡子的變形進行分析、計算，找出變形規律，優化設計400mm輕型平面鏡、 450mm輕型球面鏡鏡體結構；分析玻璃切削原理，設計專用磨輪結構，選擇合理工藝技術參數，完成400mm平面鏡輕量化減重孔的加工；分析氫氟酸腐蝕光學玻璃機理，尋找最佳酸濃度、腐蝕作用時間等工藝參數，實現400mm平面鏡減重孔應力與微裂紋的消除；討論分離器加工原理和工藝技術特點，完成400mm平面輕型鏡面形加工。 -
The surface modification of foils contributes to the activation of surface before etching, and consequently provides more pit sites. the redemption and regeneration of passive film on foil surface lead to continuous growth of tunnels. anodized in oxide - forming acid, the etched foil shows higher capacitance
侵蝕前鋁箔的表面改性處理研究了堿性、酸性溶液、直流電和低頻交流電對比容的影響，結果表明堿性溶液和酸性溶液處理有利於活化表面、提高比容；直流電和低頻交變電流表面改性需嚴格控制時間在5s內，最佳為2s ，可提高比容8 10 。 -
The etching reactor is developed to obtain reproducible tapers of desired diameter and length. an approach for on - line monitoring of etching using the power meter is demonstrated. based on the experimental data, the relationship between the leak - out optical power and change of time and also that between the leak - out power and width of the remaining width of cladding, and the fiber length exposed to hf acid are summarized
本文對氫氟酸腐蝕法製作光纖耦合器的反應裝置和實驗系統進行了設計，介紹了具體的實驗過程及其注意事項，通過對實驗結果進行分析總結，得出泄漏光功率隨腐蝕時間的變化關系以及泄漏光功率與包層剩餘厚度和腐蝕長度的關系。 -
As quartz fraction in loess is separated by the tedious process of etching with fluorosilicic acid for 6 days, 20ml 30 % fluorosilicic acid per gram, not only the feldspars in loess could be removed completely, but also less quartz could be etched away in loess
溶蝕實驗表明，用40 hf溶蝕40min對石英的損失太大，不適合黃土中石英的分離。用30氟硅酸（ 20ml冶）溶蝕約6天，分離黃土中的石英顆粒，既可以溶蝕掉長石顆粒，又對石英的損失較小。 -
One company selling hydrochloric acid for etching cement floors reckoned that, because it was in gel form and could legally be washed down the drain, the product was environmentally friendly
一家銷售蝕刻水泥地鹽酸的公司以為鹽酸為膠液產品，可以被合法地沖進下水道，因此是環保產品。 -
Meanwhile, the paper also discusses some methods to improve the polishing processes, i. e. using the liquid - drop method to monitor the remaining width of the cladding in time. finally, the feasibility of the three kinds of coupling method ? fbt, hf acid etching and the side - polishing are discussed and compared
最後，對熔融拉錐法、氫氟酸腐蝕法和邊研磨法三種方法的可行性進行了分析與比較，得出一套比較適用於光纖竊聽的設計方案。 -
In the beginning, the development history and the current development of the technique of fiber detection are introduced briefly. then, discussed in detail are strong coupling theory concerning the fbt coupler and the weak coupling theory concerning the hf acid etching and the side - polishing coupler. from the analysis of fiber coupling equations, the solution of the equation and the formula of the coupling coefficient are derived
本文首先概述了光纖竊聽技術的發展歷程和現狀，有針對性地分析了關于光纖竊聽技術中的光纖耦合問題，並詳細介紹了用於熔融拉錐耦合器的強耦合理論和用於氫氟酸腐蝕與邊研磨光纖耦合器的弱耦合理論;分析了耦合模方程，得出了耦合模方程的形式解，推導出耦合系數的計算公式。 -
Standard practice for liquid and gelled acid etching of concrete
混凝土液態和加膠酸浸蝕的標準實施規程 -
Research on variation of velocity sensitivity and water sensitivity before and after acid etching in carbonate reservoir
酸蝕前後碳酸鹽巖儲層速敏性和水敏性變化研究 -
The common method used by domestic and foreign scientists is removing the cobalt from the surface of the substrate by etching substrate using thin acid solution at room temperature. but the internal co will still overflow during mpcvd
為降低成核及成膜過程中鈷的副作用，國內外通常採用的方法是將硬質合金基體在室溫下用稀酸溶液浸泡一定時間，從而除去基體表面的鈷。 -
The results of single fiber pull - out show that chemical etching on the surface can improve interface - adhesions between treated fiber and epoxy resin. the high performance ve resin has been obtained by methyl acrylic acid, epoxy e - 51 polymerization with suitable proportion. the resin properties are characterized by ftir, dma, dta, tga, sem
在ve樹脂的合成及表徵部分，研究確定了反應的最佳物料配比以及反應條件，對合成機理以及影響因素進行了探討；藉助于ftir 、 dma 、 dta 、 tga 、 sem等測試分析手段對樹脂的性能進行了表徵。 -
The oils meguiar ' s uses are also important in maintaining the original condition of the paint by filling in the naturally occurring microscopic pores and surface imperfections thus preventing detrimental substances and elements as simple as water, or worse, acid - rain, from entering into these pores and microscopic surface imperfections thus causing oxidation and chemical etching
美光的這種油在護理原始的漆面在填補細微的小孔和不完整的漆面時，會防止有害的物質和成分，例如像水、或臟的水點、酸雨等滲入到小孔，導致氧化和化學腐蝕。 -
An acid - proof protective coating applied to metal plates to limit areas of etching
中義一種塗布在金屬版上的抗酸性保護層，可限制腐蝕的范圍。
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