過鐵酸鹽 的英文怎麼說
中文拼音 [guòtiěsuānyán]
過鐵酸鹽
英文
perferrate-
Methods for chemical analysis of ferrotitanium - the persulfate - arsenite volumetric method for the determination of manganese content
鈦鐵化學分析方法過硫酸鹽-亞砷酸鹽容量法測定錳量The main results are following : ( 1 ) the variation of clay / silt ratio can indicate the secondary clay action of dust depositions ; the variations of magnetic susceptibility and total fe content are inferred to be records of the changeable intensity of bio - pedogenesis ; the variations of sr content and rb / sr ratio can indicate bio - pedogenesis, dissolving and leaching action ; the content of total organic carbon ( toc ) can reflect variation of climate and vegetation during soil formation, it indicates the intensity of weathering and bio - pedogenesis ; the content variation of caco3 can show the intensity of dissolving - leaching action and secondary deposit, which was noted as pseudomycilia in pores and fissures in the sediment, so it can indicate the intensity bio - pedogenesis quite well. these proxy indexes also reflect obvious regional difference of pedogenic environment and the intensity bio - pedogenesis ; namely, secondary clay action, dissolving - leaching action and bio - pedogenesis are all much stronger in south than that in north
實驗結果表明：粘粒粉沙比值能很好地指示粉塵堆積物的次生粘化作用；磁化率和全鐵很好地指示生物風化成壤作用； sr和rb sr比值能很好的指示生物風化成壤作用和淋溶作用；總有機碳（ toc ）含量的高低，在一定程度上反應了土壤發育過程中氣候和植被狀況的變化，指示著成壤過程中腐殖質化的程度； caco3含量的變化，可以反映了黃土古土壤形成時的風化成壤作用的強弱程度，指示成壤過程中的淋溶作用和次生碳酸鹽化作用；並且各指標所指示的成壤環境和成壤強度存在明顯的區域差異，即渭河流域土壤的生物風化成壤作用、次生粘化作用和淋溶作用均表現出南部強于北部。This paper unfolds engineering disposition and theoretical research of negative temperature high performance concrete ( nthpc ) with the damage of many factors motivation, the project background based on qing - zang railway engineering, which is one of four - emphasized engineering during the tenth five - plan. due to the difference of environment of construction and service between nthpc and ordinary concrete, and therefore durability of nthpc is required to higher level. at a first, nthpc must avoid frozen damage at early age and possess anti - freezing property at later period, in order to meet engineering practicable application need, and this are two emphasized and difficult problems, as for nthpc ; by means of mechanism analysis about deicing - agent ingredient and anti - freezing at early period, adopting composite technique routine of mineral addition + anti - freezing element + water - reducer4 - air - entraining + anti - erosion of steel component etc, based on orthogonal experimental approach, fd - 1 composite functional admixtu re was manufactured, which has more property and orientation on qing - zang railway
負溫混凝土由於和普通混凝土在施工環境及服役環境上存在的差異，因此表現為比普通混凝土更為較高的耐久性要求；負溫混凝土首先要避免早期的凍害以及具備長期抗凍性能，才能夠滿足工程實際應用的要求，這也是負溫混凝土必須解決的兩大技術關鍵；通過對目前常用防凍劑組分作用機理的分析研究及混凝土早期防凍機理探討，採用礦物外加劑+防凍組分+高效減水劑+引氣+阻銹組分功能復合的技術路線，通過正交試驗設計復配了適應青藏鐵路工程要求的專用多功能復合型外加劑fd - 1 ；並在此基礎上配製不同等級負溫高性能混凝土，開展一系列包括硫酸鹽侵蝕、氯離子滲透、抗凍融循環、收縮及耐磨性等耐久性能研究；通過對fd - 1組分和摻量的調整，優化負溫混凝土在施工特性、力學指標和耐久性三個方面的兼容、協調性。Chemical industry information not merely embodyed the ordinary chemistry information substance, chemistry manufacture technological process and representative installation introduction are still have, in case contacing legal institutions sulphuric acid ? nitric acid industry system law ( ammonia oxidate law ), synthetic ammonia industry, chlorine and caustic soda are manufacture to electrolysis salt water, along with electrogilding, refine aluminium, iron - smelting and steel - smelting, cement and glass manufacture summarized account, the mineral oil is refined, hence, the chemical industry information education is contrastd against the ordinary chemistry information education, proper such representative means, be living, the means interpreted is in speech oridinarily wholly adoptd in the chemical industry information education, now most of tutors also is adopt the means interpreted in speech, cause that the chemical industry information education is insipid like this, student lack interest to chemical industry information study, but as a result of value the pair foundation, light practice, student may say the become a mere formality to chemical industry information study o since multi - med
化工知識不僅包含了一般化學知識的內容，還帶有化學生產工藝流程及典型設備的介紹，如接觸法制硫酸，硝酸的工業製法（氨氧化法） ，合成氨工業，電解食鹽水製造氯氣和燒堿，以及電鍍、煉鋁、煉鐵和煉鋼，水泥和玻璃的生產簡介，石油的煉制等，因此，化工知識教學與一般化學知識教學相比，應有其典型的方法。在過去，化工知識的教學一般都採用口頭講解的方法，現在大多數教師也是採用口頭講解的方法，這樣使得化工知識的教學乏味，學生對化工知識的學習缺乏興趣，又因重視雙基，輕實踐，學生對化工知識的學習可以說流於形式。由於多媒體的輔助教學的高效性、形象直觀性、新穎性和多樣性、人工模擬等特點，很適合化工知識的教學，應用多媒體教學化工知識可以解決目前存在的諸多問題，如：模型短缺、組織參觀活動困難、教育經費不足、學生不易觀察等。Ep - red will not give complete iron reduction in 24 % or higher hydrochloric acid strength. it is likely to be ineffective in preventing iron induced sludging if 28 % acid is required
當鹽酸濃度高過24 %時， ep - red將不能發揮完全的降鐵作用。當使用28 %濃度酸時，它已對降低鐵渣失效。We found it a key to pay attention to the facts of current efficiency as well as relative ferrate concentration and simplifying the procedure of precipitation and purification so as to raise the technique level of preparing ferrate ( vi ) by the method of electrolysis
本文通過總結現有制備高鐵酸鹽的工藝方法尤其是電解法的有關文獻發現，兼顧電流效率和相應的高鐵酸鹽濃度水平以及簡化結晶純化手續是提高電解法制備高鐵酸鹽工藝水平的關鍵。Effects of the method analysing contents of iron ions in clarified brine on the production of chlorine and caustic soda are discussed. shortcomings of currently used analytical method - ammonium thiocyanate method are indicated, and a new effective method ? ? o - phenanthroline colorimetry is proposed
文中通過精鹽水中鐵離子濃度的分析方法對氯堿生產的影響的討論，指出目前常用的硫氰酸銨法的不足之處，並提出了一種行之有效的精確度較高的分析法?鄰菲羅啉比色法。The features of modified electrode were investigated by cyclic voltammetry and the assay conditions were optimized. the modified electrodes were further covered with nafion membrane that could erase the interference
和cll的三種鐵氰酸鹽修飾電極的性能及電化學特性，並研究了各種實驗條件對過氧化氫傳感器性能的影響。The information of the carbon and oxygen isotopes in the ground - water ' s in carbonate plays an indicated role in the seperation the ground water system. and in the end of the paper, some prelimilary suggestion have been naturally put forward for the stop of the leakage in the dam foundation
中稀土sm tb的比值反應了水巖相互作用過程中巖溶作用以及黃鐵礦氧化作用的強弱。地下水中碳酸鹽碳氧同位素的信息對地下水系的劃分起到指示作用。最後，對壩基的防滲提出初步的建議。分享友人