防氧化層 的英文怎麼說
中文拼音 [fángyǎnghuàcéng]
防氧化層
英文
antioxidationcoating-
Using cd, cu, zn and cr as experimental toxicants and crucian as experimental creature, we employed the environmental biotechniques ( flame atomic absorption spectrophotometry, the method of improved pyrogallol autoxidation and electron microscopy ) to study the acute toxicity and secure concentrations of heavy metals to crucian ; the accumulation and distribution of mixed heavy metals to fingling crucian ; the activities of superoxide dismutase ( sod ) of gill and liver tissues and the hispathological and ultrastructural change of superfine structure of liver and kidney of crucian after cadmium exposure. through which, we intended to fully and systemically study the toxic influence of heavy metals to fish, and preliminarily discuss the influence of heavy metals pollution to the diversified level of fish such as individual, organ, tissue, cell and molecule. thus we tried to provide scientific evidence to establish preventative management measures, avoid and relieve the harm of heavy metals pollution to aquicolous ecosystem in time
隨后以這幾種重金屬作為實驗毒物,以鯽魚為實驗動物,應用環境生物技術、火焰原子吸收分光光度法、鄰苯三酚自氧化法、透射電鏡等技術研究了重金屬cu 、 zn 、 cd和cr對鯽魚的急性毒性及其安全濃度評價、混合重金屬在鯽魚幼體組織內的積累和分佈、 cd對鯽魚鰓和肝臟中sod活性的影響、 cd對鯽魚肝細胞和腎細胞超微結構的影響等,全面和系統地研究了水環境中重金屬暴露對魚類的毒性影響,初步探討了重金屬污染對魚類的個體? ?器官? ?組織? ?細胞? ?分子等各水平層次的影響,為制定漁業生產上預防性的管理措施提供科學依據,及時避免或減輕重金屬污染對水生生態系統造成的損害。The method is to coat a wafer of silicon with a protective layer of silicon dioxide.
其方法是往矽片上塗上一層二氧化硅防護膜。The lubrication aluminum oxide coatings with high hardness, antiwear and corrosion resistance by using microarc oxidation technology were discussed as well as its application
對應用微弧氧化技術制備具有潤滑性能的高硬度耐磨、防腐蝕氧化鋁塗層及其應用進行了初步探討。Introduction to general ideas in air pollution control, air pollution effects, design of wall collection devices ( gravity settlers, centrifugal separators, electrostatic precipitators ), design of dividing collection devices ( surface filters, depth filters, scrubbers for particulate control ), design of controlling by concentration and recovery ( condensation, adsorption, absorption ), design of controlling by oxidation ( combustion, biological oxidation, biofiltration ) and the choosing of a control technology
本課程介紹空氣污染防制概念,空氣污染之影響,壁式集塵設備之設計(重力沉降室、離心分離器、靜電集塵器) ,分隔集塵設備之設計(表面過濾器、深層過濾器、洗滌器) ,以濃縮回收之控制設計(冷凝、吸附、吸收) ,以氧化之控制設計(燃燒、生物氧化、生物過濾) ,以及控制技術之選擇。The characteristic of chemical grouting material should combind with construstion method directed by the theories, it is necessity guarantee for the good result in some special cases. by cw series material, various complicated engineerings have been successfully handled, such as the treatment of concrete fine cracks in three gorges project ( tgp ), foundation reinforcement to the fault in in three gorges project ( tgp ), and the seepage control and reinforcement for the dam base of jiangya hydropower - station. these illustrations are provided to proof the advantages of modified epoxy resin and its technique
化灌材料特性與理論指導下的灌漿工藝的全面結合是化灌處理,特別是特殊條件下灌漿效果的必要保證, cw系改性環氧化灌漿材及技術對多種復雜工況工程處理對象成功處理,解決了三峽混凝土微細滲水裂縫防滲補強、三峽工程地質斷層泥化夾層加固以及江埡電站壩基溶蝕帶防滲等一系列工程技術難題,印證了該材料及技術的先進性。Meanwhile, fundamental principles about electroless tin plating by reducing agent and disproportionation reaction were explained. function of every component in the bath was explained that complexing agent can effectively change the potential of copper and tin, and accelerate the beginning of replacement reaction favorably ; reducing agent can increase the rate of chemical reaction and has the effect of promoting reaction dynamics too ; antioxidant can effectively prevent sn2 + in the bath from being oxidated ; additive agent a can improve the stability of the bath ; additive agent b has such effects as refining and brightening for the tin deposits, and it enlarges the range of brightening section ; additive agent c used as leveling agent can not only make the depostis level off, but also improve the dispersive ability of the bath ; surface - active agent can solve bubble problem which gathered on the surface of the deposits, and improve the surface quality of the deposits and the bath stability
闡述了鍍液中各組分的作用:絡合劑能有效地改變銅、錫的電位,促使初期的置換反應順利進行;還原劑能加快化學反應速度,對反應動力學有積極的促進作用;抗氧化劑能有效地防止鍍液中sn ~ ( 2 + )的氧化;添加劑a能提高鍍液的穩定性,添加劑b對鍍層能有細化和光亮作用,擴大了鍍層光亮區的范圍;添加劑c作為平滑劑,不僅能增強鍍層表面的平整性,而且能提高鍍液的分散能力;表面活性劑較好地解決了化學鍍過程中汽泡在鍍件表面聚集的問題,提高了鍍層的表面質量和鍍液的穩定性。A method of multi - metal - layer alternate growing is applied to develop a new type of solder structure, which prevents oxidation and creeping of the solder ( the research of this field has been published in an english journal )
採用多層金屬交替生長的方法,研製出一種新型的焊料結構,防止了焊料的氧化和上爬(已在國外刊物發表) 。The coating can be white zine, color zine, nickel, phosphate processing or resin
磁體表面防氧化層可採用鍍白鋅、五彩鋅、鍍鎳、磷化、或環氧樹脂噴塗。Continuous carbon fiber reinforced silicon carbide ceramic matrix composites ( cysic ) are considered as the most promising thermal structural candidate materials for aerospace, energy and nuclear technologies etc. as a key technology for improving high - temperature structural applications of the materials, oxidation protection with anti - oxidation coating system had being paid more and more attentions
連續碳纖維增強碳化硅陶瓷基復合材料( c sic )是一種極具潛力的高溫結構復合材料,在航空航天、能源及核技術等領域有著廣闊的應用前景。為了推進材料的高溫應用,對防氧化塗層已開展了廣泛的研究,但是對目前廣泛採用的cvdsic塗層的缺陷控制鮮有研究。Monthly production capacity of 300000 square feet of high - precision pcb board of double - layer and above, capable of production of circuit boards of various surface treatment process to customer ' s requirements, ranging from tin leveled board with lead to lead - free tin - leveled board, and from chemical nickel / gold plated board to even environ - friendly coated board with anti - oxidation film
月產能30萬平方英尺雙層以上高精密pcb板,可根據客戶要求生產各種不同的表面處理的線路板,從有鉛噴錫板至無鉛噴錫板,從化學鎳金板至更加環保的防氧化膜塗層板。Hi - tech aluminum trioxide coating, resisting dirt, ultraviolet, and heat
高科技結晶三氧化鋁高耐磨層,防污、抗紫外線、抗燙。That is important factor to get better composite material. the factors which affected composition affected the thickness and the uniformity of the plate too
穩定劑可以防止鍍液的自分解,氧化亞鋼產生,適當的含量是對獲得好的鍍層是非常關鍵的。Features : contain the natural extracts of chamomile and aloe, and natural amino acid. with temperate texture, it can form the cutin protection membrane on the skin surface, strengthen the protection ability of the cuticle, lock the moisture of the skin cell effectively at the same time. to make the skin keep moist constantly, prevent the cell ' s lipid from excessive oxidize, improve sensitive skin, make weak skin recover health, be full of elasticity and gloss
特點:蘊含天然洋甘菊精華、蘆薈精華、天然氨基酸,質地溫和,能迅速在肌膚表面形成角質防禦保護層,加強角質層的保護能力,同時有效鎖緊肌膚細胞的水份,令肌膚時刻保持潤澤剔透,避免細胞的脂質過分氧化,改善敏感肌膚,使脆弱的肌膚回復健康、充滿彈性光澤。Thermal spraying - coatings for protection against corrosion and oxidation at elevated temperatures
熱噴塗.高溫腐蝕和氧化防護塗層Thermal spraying - coatings for protection against corrosion and oxidation at elevated temperatures iso 17834 : 2003 ; german version en iso 17834 : 2003
熱噴鍍.防高溫腐蝕和氧化的塗層High - effective natural moistening factor - hyaluronic acid ( ha ) can deeply supply skin with water, thoroughly improve dry skin, make it water fresh and elastic ; the 8 natural plants essence including chlorophyll time - inverse non - trace repair factor, and 100 % pure aloe oil etc. can effectively improve dark and languish skin, resist damage, reduce lipid oxidation, and make it smooth and delicate with vigor, especially for dry, water - lacking and dark skin
好處:高效天然保濕因子?透明質酸( ha ) ,可深層補充肌膚水份,徹底改善皮膚乾燥現象,令肌膚水潤清盈而富有彈性;葉綠素逆時無痕修復因子、 100 %純蘆薈油等8種天然植物精華,有效改善皮膚晦暗無光、憔悴等現象,防止肌膚免受傷害,減少脂質氧化,令肌膚光滑細膩、充滿生機;尤其適用乾燥、缺水、暗黃等肌膚。The simulations results show that the spoiler is available to make the fuel and the oxidizer coming from the former to stay in the cavity for a long time, to let the fuel and oxidizer mix and burn completely. since there is a high temperature zone forming by vortex in the middle of the motor, it required a restricted thermal protection. the plate with holes decreased the vortex function in the cavity, which could not promote the combustion efficiency, but to decrease temperature in the cavity and be benefit to thermal protection of the wall
計算結果分析表明:擾流板可以使燃料和氧化劑在擾流腔內的滯留時間加長,促進燃料與氧化劑的摻混燃燒,提高燃燒效率,但由於渦流在發動機的中間部位形成了高溫燃燒區域,致使局部燃料和絕熱層燒蝕速率增大,加大了熱防護的難度;孔板結構減弱了擾流腔內迴流區的漩流作用,不能增加推進劑燃燒效率,但可以使擾流腔內的溫度降低,給壁面熱防護帶來好處。The most important thing you can do to prevent oxidation besides washing is to protect the paint you presently have with a protective coating
最重要的是防止氧化,除了清洗時保護漆面外,它上面還加了一層保護膜。Our experiments emphasized the correlation between micro structures and some properties of the coatings and tried to obtain the protective coatings with the comprehensively good properties, in which auger electron spectroscopy ( aes ), scanning electron microscope ( sem ), and x - ray diffraction ( xrd ) were employed to investigate the composition, microstructure and crystal phase of the coatings respectively, and the properties test was primarily considered with the wear resistance and corrosion resistance of the coatings
本論文主要採用pvd技術中的磁控濺射鍍膜( ms或rms )及部分用等離子噴塗( ps )和熱氧化( to )表面處理技術研究了鈾的具有代表性的三種防腐保護鍍層,即單質al 、氧化物al _ 2o _ 3和合金al - zn鍍層。實驗力圖在制備技術、工藝參數及鍍層的微結構和性能之間找到一些內在的聯系,探索綜合性能較好的防腐蝕鍍層。Review of the recent research improvement of the oxidation protective coating for c c composites
碳復合材料防氧化塗層研究新進展分享友人