鉛文摘 的英文怎麼說
中文拼音 [qiānwénzhāi]
鉛文摘
英文
lead abstracts-
It introduces the process of recovering indium from lead reverberatory dust with h2so4 leaching - p204 extraction
摘要文章介紹了用h2so4浸出p204萃取法從鉛浮渣反射爐煙灰中回收銦的生產流程。Abstract : it is proposed that the sturdiness of silicic acid congealed gel is a key factor to make the reaction of producing “ " lead trees ” successful. the better conditions of preparing silicic acid congealed gel are detemined. the success rate of this oxidation - reduction equilibrium is raised by 90 %
文摘:提出了生成「鉛樹」反應成功的關鍵是硅酸凝膠的堅固性，找到了較好的硅酸凝膠的制備條件，使該氧化還原平衡移動的反應成功率提高了90以上Abstract : based on 1 200000 aeromagnetic survey data performed in 1998, and referred to materials of geolo - gic and geochemical prospecting of the working area, this paper discusses the relationship between the characte - ristics of magnetic field, magmatic rocks, fault structure and the distribution of mineral resources, and investigates the geologic metallogenic environments, and sets up the prospecting criteria for hydrothermal and volcanic - sedimentary copper, lead, zinc, gold, iron, manganese deposits, then makes the prognosis of the prospecting potential of the working area
文摘:本文以1998年1 20萬航空磁測資料為基礎，參考地質和化探資料，對工作區磁場特徵、巖漿巖、斷裂構造與礦產分佈的關系進行探討，研究地質成礦環境，建立尋找熱液型和火山-沉積型的銅、鉛、鋅、金、鐵、錳礦找礦標志，對本區找礦遠景進行了預測。Abstract : the ashing loss of pb in water samples has been studied in digestive method for determination of lead by dithizone spectrophotometry ( gb 5750 - 85 ). after the digestive conditions are improved, the digestive loss of pb in some polluted water samples is prevented. the recovery of pb rised, the accuracy and precision of the analytical date are guaranteed
文摘:對國標5750 - 85雙硫腙分光光度法中消化水樣時鉛的灰化損失進行了探討，針對某些污染嚴重的水樣，改進了消化處理的條件，有效地消除了灰化損失，提高了鉛加標回收率，保證了分析測試數據的精密度和準確度。Taking the example of china tin gruop co., ltd hechi metallurgy and chemical industry, the article details the production processes, technology conditions and production practice of removing arsenic from the second caustic sludge and lead from the second lead sludge
摘要文章以華錫集團河池冶金化工廠精煉生產工藝為例，詳細介紹了採用二次堿渣進行脫砷，二次鉛渣進行脫鉛的生產流程、工藝技術條件及生產實踐。The molecular dynamics simulation method has been used to study the relation between the melting temperature and the cohesive energy of pb nanofilms
摘要本文利用分子動力學方法研究了鉛納米薄膜的熔化溫度與結合能的關系。Abstract : beginning from the characteristics of lead - bearing flue ash, thearticle systematically introduces the process flow and technology requirements of making use of lead - bearing flue ash to prepare lead monoxide
文摘:從含鉛煙道灰的特點出發，系統地介紹了處理含鉛煙道灰，制備一氧化鉛的工藝流程及技術條件。Abstract : a review with 10 references is given on the relationship between trace elements and the health of human body including the physological function of fe, the immunity function of se and the poisonous effect of pb
文摘:討論了微量元素與人體健康的關系及其在體內的代謝平衡問題，包括:鐵的生理功能、硒的免疫功能、鉛的毒害作用。There is a close relation between mesozoic tectonic evolution, fluid evolution, petrogenesis and mineralization in the manzhouli - e ' erguna region in the northeast of the northern orogenic belt, china, and three evolution stages of the mesozoic tectonic - fluid - petrogenetic and metallogenetic system are proposed out : 1 ) acompanied by ree and cu mineralization, the calc - alkaline volcanic rocks and mantle - crust mixed type granite occurred under the regional tension tectonic background caused by the mongolia - okhotsk residual ocean that was closing in scissors form in the early - middle jurassic. 2 ) acompanied by pb, zn and ag mineralization, the calc - alkaline and alkaline volcanic rocks occurred under the regional shear - compression tectonic background in the late jurassic. 3 ) acompanied by u, f, pb, zn and ag mineralization, the caic - alkaline and alkaline volcanic rocks occurred under the regional tension tectonic background in the early cretaceous
摘要本文討論了北方造山帶東北段滿洲里額爾古納地區及其毗鄰區中生代構造流體成巖成礦系統及其演化的三個不同階段： 1 ）早中侏羅世張性「似裂谷環境」下所形成的中基性堿性火山巖、同熔性花崗巖及深源流體活動形成的稀土礦床和斑巖性銅鋁礦床； 2 ）晚侏羅世擠壓剪切環境下所形成的酸性火山巖、斑巖類及深源流體活動所形成的鉛鋅銀礦床； 3 ）早白堊世張性環境下所形成的基性堿性火山巖及深源流體活動所形成的鈾礦床、金銀礦床及螢石礦床。( 3 ) the result of imitating shows that the distribution of temperature look like triangle at present, the cause of temperature asymmetry is the mistake ratio of gas and air in the same vertical direction, the direction to improve on is by adjustment to distribute reasonably gas in different height and uniformly gas in same level
（ 3 ）模擬結果展現了目前鉛塔燃燒室溫度呈三角形分佈，並揭示了造成這種不均勻分佈的根本原因是空氣、煤氣在同一垂直方向的不匹配。並指出了改進方向是通過調整，使煤氣2002年工程碩士畢業論文摘要在高度方向的名迢群引配、以及在水平方向均勻分佈。Abstract : the hygienic condition of food - wrapping paper directly concerns the quality and safety of the wrapped food. thus, a sample investigation was made on the wrapping paper of 60 candy, pastry and ice - cream shops and that of food stalls of xinxiang city. the result shows that the hygienic qualification rate of the food - wrapping paper on the present market is only 72. 7 %. furthermore, the contents of lead, arsenic and bacterium coli are rather high. this should be taken seriously by the parties concerned
文摘:食品包裝用紙衛生與否，直接關繫到被包裝食品的衛生質量和安全.鑒於此，對新鄉市60家糖果、糕點、冰糕店及街頭食品攤點所使用包裝用紙進行了抽樣調查.結果顯示，目前市面上食品包裝用紙的衛生合格率僅為72 . 7 % ，且部分食品包裝用紙中鉛、砷以及大腸菌群等含量均存在嚴重問題，需引起有關方面的?重視Abstract : the defects such as inclusion, splitting, dislocation and dendrite in the pbxla1 - x ( zry tiz sn1 - y - z ) o3 ( plzst ) single crystal grown from pbo - pbf2 flux by the slow cooling self - seeding technique were discussed in this paper. the forming mechanism of these defects were analyzed and some measures to eliminate the defects were proposed
文摘:本文介紹了助熔劑緩慢降溫自發成核法生長的稀土摻雜鋯鈦錫酸鉛鑭（ plzst ）晶體中出現的幾種缺陷：包裹體、開裂、位錯、枝晶，分析了這些缺陷的形成機理並提出了減少和消除這些缺陷的一些措施。Abstract : the paper introduces some cautions for correct use of catalyticconverter, i. e., correct use of lubrication oil, use of superior nonleaded gasoline, keep of better automotive working status, normal working condition of electronic control system of engine, installation of over heat alarm and etc
文摘:介紹了正確使用催化轉化器的一些注意事項，即正確使用潤滑油，使用高品質的無鉛汽油，保持發動機良好的工作狀態，發動機電控系統必須正常及安裝過熱報警器等。Abstract : the underground load characters in yinshan mine were analyzed. based on the technical features of various kinds of reactive compensation devices, it was proposed that low voltage capacitance dynamic compensation mode shall be adopted for compensating reactive power and lowering voltage fluctuation
文摘:對銀山鉛鋅礦井下負荷性質進行了分析，根據各種無功補償裝置的技術特點，提出採用低壓電容動態補償方式對該礦井下無功進行補償和降低電壓波動。Abstract : with the rapid development of industry and transportation ， the pollution of lead ， a widely used heavy metal element being very harmful to human ， has extended from occupational environment to daily environment ， and is being paid more and more attention to. in view of the severity of enviromemtal lead pollution ， harm of chronic lead poisoning to children ' s growth and intelligence development ， and the defects of the agents to remove lead available now ， this paper emphasizes the significance and importance to explore high effective ， no side - effect antidote to chronic lead poisoning ， points that using natural materials to prevent and treat chronic lead poisoning is a significant direction to explore ， and reviews the studies in the area
文摘:本文從鉛污染的生活環境化、低濃度環境鉛污染對兒童發育和智力的阻礙、傳統驅鉛劑存在的問題論述了探索高效、安全、無毒副作用驅鉛劑對防治環境鉛污染慢性中毒的重要性，介紹了國內外利用天然產物防治鉛中毒的研究概況及進展，指出利用天然產物防治鉛中毒是一項很有意義的探索方向。Abstract : in this paper, a kind of technological scheme for one - step precision forging spur gear with large module is put forward by using positive friction role. experiment, in which commercial pure lead is taken as test material, is done in the special die designed, and force vs. stroke curve is recorded. it is shown that positive friction role can efficiently make a contribution to the filling of the tooth cavity, but increase forming force
文摘:針對大模數直齒圓柱齒輪，提出了利用積極摩擦一步成形的工藝方案，並用工業純鉛作為試驗材料，在設計的專用模具上進行試驗，記錄了力? ?行程曲線，結果表明：利用積極摩擦作用能夠有效地保證直齒圓柱齒輪精鍛時齒腔充滿，但同時增加了變形力。Abstract : in view of technical problem of hydro - pyro processing of lead anode slime, by changing technological conditions of pretreatment and optimizating technological procedure, the cost of process decreased and the recovery of ag increased to 98. 34 %, which means that improved hydro - pyro process is more economically reasonable for recovering ag from anode slime
文摘:針對某廠濕火聯合法處理鉛陽極泥工藝存在的問題，改變了預處理條件，優化工藝結構，降低生產成本，提高了銀直收率，達到98 . 34 ，使工藝更具經濟合理性。Abstract : at first, the shaking table test of a gravity pier model was done. the comparison between the test data and the theoretical analysis results of the model showed that they are identical to each other. the dynamic model of a whole bridge with gravity piers and lead - rubber bearings was set up. the positive role of lead - rubber bearings on lowering the seismic responses of railway bridge and the seismic character of gravity piers were analysed. some earthquake resistance measures of railway bridge with gravity piers were put forward
文摘:首先進行了重力式橋墩模型振動臺模擬地震試驗，試驗與理論分析結果基本一致;然後建立了採用鉛芯橡膠支座的重力式橋墩橋梁全橋體系動力分析模型，計算分析了鉛芯橡膠支座對橋梁的減、隔震作用及重力式橋墩的抗震性能，提出了重力式橋墩橋梁的抗震措施。Abstract : the article introduces an activating and charging method for trouble lead - acid accumulator due to over discharging or self - discharging in a long period. this paper also analyzes the cause of trouble accumulator, principle of activating and main circuit of instrument
文摘:本文介紹了對過放電或長期放置自放電嚴重的鉛酸型故障蓄電池進行激活充電的一種方法.文中分析了蓄電池的故障產生原因和故障蓄電池的激活機理，敘述了儀器設計原理框圖及主要電路Abstract : the newly - developed “ routine d. c. 2 - dimensional interactiveinversion software system ” was used to per - form computer interpretation of ip and resistivity data from a certain large - size lead - zinc deposit in hebei province
文摘:介紹了利用新研製的常規直流電法二維人機聯做反演軟體系統對河北省某大型鉛鋅礦的激電和電阻率法資料作計算機解釋的結果。分享友人