選擇腐蝕 的英文怎麼說

中文拼音 [xuǎnzháifǔshí]
選擇腐蝕 英文
differentiate etching
  • 選 : Ⅰ動詞1. （挑選） select; choose; pick 2. （選舉） elect Ⅱ名詞（挑選出來編在一起的作品） selections; anthology
  • 擇 : 擇動詞（挑選） select; pick; choose
  • 腐 : Ⅰ名詞（豆腐） bean curdⅡ動詞（腐爛; 變壞） decay Ⅲ形容詞（腐爛） rotten; corroded; putrid
  • 蝕 : Ⅰ動詞1. （損失; 虧耗） lose 2. （腐蝕） erode; corrode Ⅱ名詞（天體現象） eclipse
  • 選擇 : select; choose; opt; election; choice; culling; alternative
  • 腐蝕 : 1 （通過化學作用使物體逐漸消損破壞） corrode; corrosion; corroding; deep etch; diabrosis; rot; ea...
  1. The catena product is in the light of iso international criterion to design and make iso2858, pumpbody adopt metalline crust pad fluorine plastics inside, impeller and pump - cover all adopt metal embed part wrap fluorine plastics alloy outside to press. to make it possess superduper resist impact and eximious resist causticity, axis - envelop choose advanced outer - install form moire - pipe machine - airproof, airproof of oppositely abrade have silicon nitride chinaware f4 horniness alloy to choose. it has ratio of very high capability and price

    本系列產品按國際標準設計製造iso2858 ，泵體採用金屬外殼內襯氟塑料，葉輪及泵蓋均採用金屬嵌件外包氟塑料合金模壓成型，使其具有超強的抗沖擊能力又有卓越的耐腐蝕性能，軸封選用先進的外裝式波紋管機械密封，對磨的密封面有：碳化硅陶瓷四氟硬質合金可供選擇。
  2. 1 ) the synthesis and structural characterization of 5, 10, 15 - tris ( penta - fluorophenyl ) corrole and its corresponding [ 5, 10, 15 - tris ( pentafluorophenyl ) corrolato ] manganese ( iii ) ; 2 ) the synthesis and structural characterization of series of porphyrin and metalloporphyrins as follows : chloro [ 5, 10, 15, 20 - tetra ( p - methyl - phenyl ) - porphinato ] manganese ( iii ), chloro [ 5, 10, 15, 20 - tetra ( p - methyl - phenyl ) - porphinato ] iron ( iii ), [ 5, 10, 15, 20 - tetra ( p - methyl - phenyl ) - porphinato ] copper ( ) and - oxo - bis [ 5, 10, 15, 20 - tetra ( p - methyl - phenyl ) - porphinatomanganese ( iii ) ]. 2. in the third charpter, a highly selected silver electrode based on 5, 10, 15 - tris ( pentafluorophenyl ) corrole has been prepared, and its response was compared with that of metallo corrole counterpart and 5, 10, 15, 20 - tetra ( phenyl ) porphyrin

    3 、制備了以-氧-雙（ 5 ， 10 ， 15 ， 20 -四（對甲基苯基） ）錳卟啉載體的鉬酸根選擇性電極，並與5 ， 10 ， 15 ， 20 -四（對甲基苯基）鐵卟啉、 5 ， 10 ， 15 ， 20 -四（對甲基苯基）錳卟啉、 5 ， 10 ， 15 ， 20 -四（對甲基苯基）銅卟啉電極的響應性能進行了比較，對電極的膜組份進行了優化，並分別考查了電極的選擇性、 ph值影響、穩定性和壽命等，並將該電極應用於腐蝕抑制劑中鉬酸根的測定。
  3. Abs acrylnitril - butadien - styrol is a corrosion resistant and shock proof case material and presents an alternative to pressure gauges with metal or pressed brass cases

    Abs樹脂acrylnitril - butadien - styrol是一種防震防腐蝕的包裝材料，是除金屬或沖壓銅外的另一種選擇。
  4. Selection of tubing material is dictated to a large degree by the aggressiveness of the stack gases.

    管材的選擇主要取決于煙氣的腐蝕性程度。
  5. Adopt advanced technic of f4 whole cold - press to moulding and heat melt to process to make, let the lining no slot to link withal cheek by jowl connect with exterior metalpipes wall, in the state of allowwing to work keep to distort in - phase, thereby to enhance using - life of lining in the working status of opposite high temperature high vacuum, stop the ecumenic pad fluorin pipes using in condition of cold and heat alternate and minus tension to come into being the matter of padding fluorin floor shrivel to jam the flowway and plastic rip, its perfect choice use to transport medium of strong corrosive strong oxidation by modern chemical - industry corporation

    採用氟塑料f4整體冷壓成型及熱熔加工等先進技術製造，使內襯層無縫搭接且與外層金屬管壁緊密粘接，在允許工作狀態下能夠保持同步變形，從而提高了襯里層在相對高溫高真空度的工況下的使用壽命，杜絕了一般襯氟管在冷熱交替，及負壓的條件下使用易產生襯塑層鼓癟阻塞流道及塑料拉裂的問題，是現代化工企業在輸送強腐蝕強氧化介質理想的選擇。
  6. Theoretical analysis and experimental results show that the mentioned methods above can simplify the process condition, improve the etched effect, shorten the etching time and obtain more even etched surface. 2 ) laser - assisted wet sequencially - selective - etching method has been developed this method can be applied when the corrosion solution is mixed solvent

    2 ）提出了激光化學誘導液相次序選擇腐蝕法該方法適用於腐蝕液為混合溶劑的情況，例如， h2so4 - h2o2對gaas基片進行腐蝕時，先採用h2o2對基片進行氧化腐蝕處理，再利用h2so4進行激光化學腐蝕。
  7. 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。
  8. Studied the liquid - phase synthesis of butyl acetate from n - butyl alcohol and acetic acid using the supported heteropoly blue as catalyst. examed several factors imposing on esterification. the results revealed : using this catalyst, the reactions conversion percentage reaches nearly 100 %, product yield is 98. 9 %, selectivity is 98. 9 %. reusing it 10 times, the efficiency is still well. in addition, using this catalyst, the reactions temperature is mild, the reaction time is short and the equipment hasnt any erosion. furthermore, there is no “ threewastesdischarge

    對以負載型雜多藍為催化劑的乙酸與正丁醇的液相酯化反應進行了研究.考察了影響酯化反應的因素.結果表明：以負載型雜多藍為催化劑，酯化反應轉化率接近100 % ，收率可達98 . 9 % ，選擇性為98 . 9 % ，重復使用10次催化效果仍好.該催化劑還有反應條件溫和、反應時間短、對設備無腐蝕、無三廢排放等優點
  9. In the third chapter, the influence of current density, solution concentration, erosion time and aging in ambient air on the pl spectra of ps suggests that peak would blue shift with current density increasing, and with erosion time and aging time prolonging ; with the increasing of solution concentration, peaks would red shift when solution concentration less than 1 : 1 but blue shift when solution concentration greater than 1 : 1. above phenomena can be explained by quantum confinement and light center model, but do not deny the action of si - h bonding and defect on the surface in the process of photoluminescence. at present, radiation mechanism is still one of the primary problems in the study of ps

    在第z三章中；通過對比，分析了電流密度、陽極化時間、溶液濃度以及自i然氧化時間對多孔硅光致發光光譜的影響，認為在一定的范圍內，多i孔硅的發光峰位會隨電流密度的增大而藍移，要獲得較強的發光，需z要選擇合適的電流密度；隨著腐蝕時間的延長，多孔硅的發光峰位會i發生藍移；當f酸的濃度較小q ： 1 ）時，峰位隨濃度的增大表現為向i低能移動；而當f酸的濃度較大河山時，峰位隨濃度的增大則表現z為移向高能；多孔硅在空氣中自然氧化；其發光峰位發生藍移，而強i度隨放置時間的延長而降低。
  10. Aerospace - space product assurance - material selection for controlling stress - corrosion cracking ; german and english version en 14101 : 2001

    航空航天.航天產品保證.控制應力腐蝕裂紋材料的選擇
  11. For example, when the gaas substrate is etched by h2so4 - h2o2, h2o2 is adopted to oxidate the substrate first, then the substrate was etched by means of laser wet etching in h2so4 solvent. theoretical analysis and experimental results show that compared with the mixed - solvent - etching, more smooth etched surface can be obtained by this method ; and because the substrate is preprocessed, time of laser induced wet - chemical etching

    理論分析和實驗結果都表明，次序選擇腐蝕法可以有效地提高腐蝕表面的均勻性;因先對基片進行化學腐蝕處理，大大縮短了激光化學腐蝕的時間;使溶劑先後分別作用於基片，可以提高激光化學腐蝕溶劑配比的精度容差，使激光化學腐蝕控制和分析更加簡單。
  12. The relations between corrosion resistance of chromium plating and technology, quality, matrix materials and surface processing methods were studied based on the summaries of production practices, arid also the methods to improve corrosion resistance were put forward

    摘要在總結實踐生產經驗的基礎上，研究和探討了硬鉻鍍層的耐腐蝕性能與鍍鉻工藝選擇、鍍層質量、基體材質和表面加工質量及方法的關系，提出了達到高耐腐蝕性能的方法。
  13. Geberit mapress stainlesssteel, carbon steel, copper, or cunife pipes and fittings offer a wide application range from residential to industrial application. the press fitting technology provides fast and leakage free joints

    吉博力mapress管道系統不銹鋼管道管件碳鋼管道管件銅管管件鍍銅鐵鎳合金管道管件特別適用抗海水腐蝕為民用建築及工業建築都提供了更為廣范的選擇。
  14. Abstract : by means of analysing the difference of fuel feature of organic solid wastes and coal ， this paper discusses low pollution ， low corrosion and high efficiency technology of organic solid waste incineration from several factors including controls of technology ， temperature ， residence time, air ratio and the use of the additives and flue gas

    文摘:通過分析固體有機廢物與煤的燃料特性的不同及其對燃燒的影響，從工藝控制，溫度控制，停留時間選擇，送風控制，添加劑以及煙氣循環使用等方面探討低污染、低腐蝕、高效固體有機廢物的焚燒技術。
  15. The lowest threshold current 1. 8ma is achieved with continuous - wave at room temperature, the maximum output power is 7. 96mw. for the resesrch work on the fabrication procedures, we discusses selective oxidation and selective wet etching

    利用濕法氧化和選擇性腐蝕相結合工藝研製出室溫連續工作的vcsel ，最低閾值電流為1 . 8ma ，輸出功率為7 . 96mw 。
  16. Space product assurance - material selection for controlling stress - corrosion cracking

    航天產品保證.應力腐蝕斷裂控制用材料的選擇
  17. It tell us : the abrasive capability of fly ash ; the similar calculation of ash erosion ; the calculation of ash erosion in the tube in turn and tube out of turn ; the reason of tube abrasion for gas flue ; the influence of air parameter for fly ash erosion ; the influence of changing temperature ; the influence of the flue gas composition, etc. next, it advances the solving measure ; reduce the flue gas velocity ; reduce the concentration of fly ash ; responsible construction : replace smooth tube with spiral tube ; use the new material of abrasion ; fuel desulfurization ; reduce so3 of flue gas ; raise flue gas temperature, making it up the dew point ; use the abrasion - resistance material to resist abrasion

    討論了飛灰磨損性能、管壁受飛灰沖蝕的近似計算、灰粒對順列管和錯列管的磨損計算、煙氣走廊引起對流管束的磨損機理、空氣動力參數對飛灰沖蝕的影響以及受熱面壁溫變化及煙氣成份對飛灰磨損的影響等問題。接著提出了解決的措施：降低平均煙氣流速；降低飛灰濃度；使用鰭片管、螺旋翅片管代替光管；選擇合適的結構及排列方式，減少煙氣中so3的含量；提高受熱面壁溫使之大於煙氣的露點溫度；採用抗腐蝕材料作受熱面等防腐蝕的措施。
  18. Fabrication and inspection method for high pressure urea equipment selective corrosion and metallographic examination on the urea grade extra low carbon cr - ni - mo austenitic stainless steel

    尿素高壓設備製造檢驗方法.尿素級超低碳鉻鎳鉬奧氏體不銹鋼的選擇性腐蝕檢查和金相檢查
  19. This paper is based on the principle of metal corrosion and analyzes the steel used by boiler, investigates systemly the methods of maintenance of cease - boiler by experiments. the purpose of thin paper can provide the reference for the choice of maintenance methods for the short, medium and long - term cease - boiler

    本文基於金屬腐蝕原理，通過對鍋爐用鋼的分析，對停爐保養方法進行了系統的實驗研究，其目的是為大型電站鍋爐選擇適合於短、中、長期停爐的保養方法提供參考。
  20. Increasing the thickness of lining material and selecting corrosion - resistant adhesives made the painting layer be used for three years

    通過增加防腐蝕襯層厚度、合理選擇粘結劑，使防腐蝕層使用壽命達到3年。
分享友人
分享到 Line

分享到臉書