氫氟的 的英文怎麼說
中文拼音 [qīngfúde]
氫氟的
英文
fluorhydric
-
氫 :
名詞[化學] (氣體元素) hydrogen (h)
-
的 :
4次方是 The fourth power of 2 is direction
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In order to elaborate the app licability of osl to loess, especially single aliquot regenerative protocol ( sar ), involving stimulation of the same disc with an infra - red laser diode followed by blue leds to polymineralic fine - grains of loess, such explanations as light bleaching, preheat, anomalous fading, prior - ir exposure were investigated in this paper. for drawing adequate coarse grains from loess, quartz and feldspars, as well as loess, were etched by hydrofluoric acid and fluorosilicic acid. the sequence of ages of holocene loess in weihe rivier basin has been established by single - aliquot ( sar ) and multiple - aliquot using fine - grains and sar using coarse - grains
本文通過渭河流域全新世黃土
的光曬退實驗,地表黃土樣品
的d _ e值測定,細顆粒單片
的預熱、反常衰退、紅外暴露實驗,說明釋光測年在全新世黃土中應用
的可行性及單片再生劑量法( sar )在黃土細顆粒中
的適用性;為了從黃土中分離出足夠
的粗顆粒,進行了純石英和長石
的氫氟酸( hf )和
氟硅酸( h _ 2sif _ 6 )溶蝕實驗,黃土粗顆粒石英溶蝕分離實驗;通過細顆粒單片、多片
的blsl 、 irsl和post - irosl ,熱釋光,及粗顆粒石英
的blsl
的年代測定,選擇適于全新世黃土
的釋光測年方法,並建立了渭河流域全新世黃土
的年代序列。
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Hf acid detecting paint to ensure valve integrity
用於保證閥門完整性
的氫氟酸檢測漆。
-
Material illustrating detailed structure of graptolites has been etched from limestone by means of hydrofluoric acid.
表明筆石詳細構造
的物質是利用
氫氟酸從石灰巖中侵蝕出來。
-
We test our hydrofluoric acid valves at extended time periods that further assure the quality of the valve performance
我們加長了檢測我們
的氫氟酸閥門
的時間段,這樣就進一步保證了閥門性能
的質量。
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Analysis f k and na in nepheline were curried out with higher precision and repeatability by means of adding fluohydric acid during sample melting to remove sio2, adjusting the ratio of k and na in the solution to reduce the mutual interference of the two elements, and adding cesium chloride to eliminate ionization interference
摘要本方法用於測定霞石中
的鉀、鈉,主要通過在溶樣時加入
氫氟酸除去二氧化矽,調整溶液中鉀、鈉
的含量,消除互相之間
的干擾,加入氯化銫消除電離因素
的干擾,提高了分析結果
的準確性和重現性,使測定結果更接近化學分析值。
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Analysis of k and na in nepheline were curried out with higher precision and repeatability by means of adding fluohydric acid during sample melting to remove sio2, adjusting the ratio of k and na in the solution to reduce the mutual interference of the two elements, and adding cesium chloride to eliminate ionization interference
摘要本方法用於測定霞石中
的鉀、鈉,主要通過在溶樣時加入
氫氟酸除去二氧化矽,調整溶液中鉀、鈉
的含量,消除互相之間
的干擾,加入氯化銫消除電離因素
的干擾,提高了分析結果
的準確性和重現性,使測定結果更接近化學分析值。
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The save energy mould pump of the corrosiveness of the ministry of industry such as chemical industry and chlorine alkali, chemical fertilizer, dyestuff, reagent, pesticide, pharmacy, electroplating and environmental protection etc door transport that pf ( fs ) mould chemical industry pump can satisfy to carry many kinds of consistency sulphuric acid, hydrochloric acid, nitric acid, acetic acid, phosphoric acid, chromium acid, oxalic acid, hydrofluoric acid and the lye, organic solvent and oxidizer geometric ratio medium under - 50 s - 80 s temperature conditions and is not han s anything small and roundish medium
型化工泵能滿足輸送- 50 80溫度條件下
的多種濃度硫酸、鹽酸、硝酸、醋酸、磷酸、鉻酸、草酸、
氫氟酸和堿液、有機溶劑、氧化劑等化學介質、是化工、氯堿、化肥、染料、試劑、農藥、制藥、電鍍、環保等工業部門輸送不含顆粒
的腐蝕性介質
的節能型泵。
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In addition, we test our hf acid valves with helium at 300 psi to insure the castin integrity
此外,我們是在300psi
的氦介質下檢測我們
的氫氟酸閥門,以確保鑄件
的整體性。
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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。
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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。
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Hf acid detecting paint to ensure valve sealing integrity
氫氟酸檢測漆,用於保證密封
的整體性。
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Soil quality - dissolution for the determination of total element contents - part 1 : dissolution with hydrofluoric and perchloric acids
土壤質量.為測定總元素含量進行
的溶解作用.第1部分:使用
氫氟酸和過氯酸
的溶解
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Meanwhile, the paper gives a detailed discussion on the coupling principles and also the fabricating processes of these three traditional fiber couplers. the hf etching method to fabricate the coupler is studied
同時,本文還具體介紹了上述三種傳統
的光纖耦合器製作方法,即熔融拉錐法、
氫氟酸腐蝕法和邊研磨法製作光纖耦合器
的原理以及製作工藝。
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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。
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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。
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A new type filler, ptfe ladder rasching ring is designed and used in the washing tower of anhydrous hydrofluoric acid equipment, properties of this filler is also analyzed
摘要設計了1種新型填料ptfe階梯拉西環並應用在無水
氫氟酸裝置
的洗滌塔中,分析了該填料
的特性。
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Although samples were in a hot reflux for a long time at 85 in the experiment, and 5 ? molecular sieve of the adsorbed sample was acidized by hydrofluoric acid, the analytical method was tested to have little influence on carbon isotopic composition of the saturated hydrocarbons before and after complexation
盡管實驗過程中樣品經過85長時間加熱迴流及吸附樣品
的5 ?分子篩用
氫氟酸酸化處理,但實驗結果經儀器檢測,證明該方法對正構烷烴碳同位素值影響因素不大。
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It introduces the property of by - product fluorgypsum from hydrofluoric acid, reviewes the application of fluorgypsum at home, and predicts the developing trend and direction of comprehensive utilization fluorgypsum
摘要對
氫氟酸生產中
的副產品
氟石膏
的性質進行了介紹,綜述了
氟石膏目前在我國
的應用現狀,並展現了
氟石膏變廢為寶,資源綜合利用
的前景。
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In this study, si nanomaterials were prepared by a thermal evaporation system, and four kinds of si nanomaterials, nanoparticles, nanoclusters, nanoclusters with hf treatment, and nanoclusters with ch3cooh treatment, were studied
本研究系以熱蒸鍍系統制備奈米矽,並探討四種不同形式
的奈米矽材料
的發光機制,分別為矽奈米粒子、矽奈米團塊、以及經由
氫氟酸和醋酸處理后
的矽奈米團塊。
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The paper expounded theory, characteristics, using range and auxiliary reagent of hydrochloric acid, hydrofluoric acid, citric acid, edta and made simple introduction to their craft and use instances, when cleaning the boiler can take reference
摘要對鹽酸、氫氟酸、檸檬酸、乙二胺四乙酸四種鍋爐常用化學清洗劑的清洗原理、特點、使用范圍,以及配套助劑進行詳細的闡述,並對四種清洗劑的清洗工藝及應用實例進行了簡單介紹,可在鍋爐清洗時進行參考。