點蝕試驗 的英文怎麼說
中文拼音 [diǎnshíshìyàn]
點蝕試驗
英文
pitting test-
It has low power and can defrost or heat in the refrigerator and expositing cabinet. both the ends of the heater adopt the imported resin glue and vulcanizate for seal ment and high ni - cr stainless steel as the case. it has good corrosive resisting performance and the insulation resistance is still more than 1000 after immersing in the water and being electrified for a long time
本加熱器的特點為表面功率較小，在冰箱，展示櫃中起加熱化霜作用。電熱管兩端採用進口樹脂膠及硫化橡膠封口，外殼採用高鎳鉻不銹鋼，具有很好的耐腐蝕性能產品經長時間浸入水中通電試驗，其絕緣電阻仍1000m 。In addition, cavitation is a difficult problem in hydraulic machinery. on the basis of a great deal of literature review, the author is also involved in the design of cavitation test facility
另外，汽蝕一直是水力機械的難點問題，在閱讀大量相關資料的基礎上，積極參與設計了泥泵汽蝕試驗裝置。Because of its resistance to electrochemical erosion, low manpower demand for application and minimal changes in geometrical dimensions of the member, the method has been found to be economical and efficient for application, based on the previous work, we designed and conducted experiments of 10 reinforced concrete ( rc ) slabs strengthened with the common carbon fiber reinforced plastic ( cfrp ) ; and investigated the effect, failure mechanism and theory
由於具有耐腐蝕、施工簡便快捷、幾乎不改變構件原有尺寸等特點，得到廣泛的應用，具有良好的經濟效益。在前人的工作基礎上，我們設計、試驗了10採用碳纖維布加固的鋼筋混凝土單向板，探討了加固單向板的加固效果和理論分析方法。Standard test methods for pitting and crevice corrosion resistance of stainless steels and related alloys by use of ferric chloride solution
用氯化鐵溶液測定不銹鋼及有關合金耐點腐蝕和縫隙腐蝕的標準試驗方法In light of current using situation and drawing on the experience of many scholars researched methods and viewpoints, this thesis made com land, fallow land, orchard, grass land as experimental field in black soil region jlau, which carried out experiment by applying different amounts of n and p fertilization in corn field. by means of collecting the samples of rainfall runoff, erosion silt and surface layer soil before and after rainfall for one year nature precipitation in field, we study the effect of surface runoff on n and p nutrient and fertility degeneration. the results showed : ( l ) there are lots of factors which affect soil erosion and losses of n and p, in which rainfall and rainfall intensity were more important, while rainfall intensity is the most important meteorological phenomena factor
針對當前黑土利用現狀，本文借鑒眾多學者的研究方法和觀點，在吉林農大黑土區選擇利用方式不同的玉米地、休閑地、果園、草地，在玉米區進行了不同數量的施肥，通過野外試驗，採集一年自然降雨產流及泥沙樣品，同時採集降雨前後的耕層土壤樣品，研究了黑土區地表徑流對氮磷養分特徵及肥力退化的影響，結果表明：土壤侵蝕和氮磷的流失受諸多因素的影響，降雨量、降雨強度是重要因子，而降雨強度是影響農田地表徑流養分流失的最重要的氣象因子，特別是暴雨，暴雨徑流中氮磷濃度較平時高得多；隨作物生長，覆蓋度逐漸增加以及不同利用方式下表現的覆蓋度差異，氮磷流失都表現為顯著的差異。X - ray diffraction spectrum, empa methods and several tests including mechanical properties, electrochemistry, corrosion wear, on - site plate hanging, the microstructure of steel has been observed and analyzed, performance has been studied, and corrosion - abrasion, fragility mechanism, and microalloy application in ferritic stainless steel have been explored comprehensively. the test results of electrochemistry, corrosion wear and on - site plate hanging have been analyzed. the analytical result shows that crsomo has enough corrosion resistance in phosphoric acid slurry because it has high chromium and low carbon
通過實驗室的電化學試驗、腐蝕磨損試驗和磷肥廠的現場掛片試驗結果分析，表明： cr30mo鐵素體不銹鋼高鉻低碳的配合，保證其在磷酸料漿中具有足夠的耐蝕性： cr30mo中（ fe ， cr ） _ 23c _ 6 、 （ fe ， cr ） _ 7c _ 3 、 mo _ 2c 、等碳化物硬質點從基體的彌散沉澱析出可提高鋼的硬度和耐磨性，使得鋼在磷酸料漿中具有良好的耐磨蝕效果。With metal fatigue in material mechanics, this paper deduces the limestone fatigue curve of longmen grottoes by means of marble s one within the error permission. by the experiment elects the crucial factors of current vibration environment in longmen grottoes, the author contrasts the result of the experiment with its fatigue curve referred above and analyses the fatigue effect of longmen grottoes. finally, it is pointed out that after longmen grottoes have being suffered weathering and water - erosion more than 1500 years, the vibration environment is becoming an crucial factor leads to fatigue effect, especially in those weak surface carvings just like the crossings of several rifts, serious weathering places, etc
借鑒材料力學中金屬疲勞破壞的研究手段，在誤差允許范圍內用大理巖疲勞曲線推導出門石窟石灰巖疲勞曲線。通過對石窟實際振動環境中典型要素的抽取和振動試驗，將試驗結果與疲勞曲線進行對比，分析了門石窟的疲勞破壞效應。文章指出，在經歷了1500多年的風化和流水溶蝕后，振動環境已成為導致門石窟某些薄弱點如多條裂隙交叉點嚴重風化酥解的壁面雕刻品等產生疲勞破壞的重要誘發因素。By analyzing the characteristic of the flow field in overloading srm and comparing several existing experiment techniques, a convergence - fold tube facility was developed. the flow field in chamber of srm with high acceleration was simulated. some inhibitor ablation experiments were carried out in this test facility
通過分析過載條件下流場的特點，提出並比較了現有過載地面模擬試驗技術的優缺點，最終確定了收斂?折管的模擬試驗方法，模擬了高過載條件下發動機燃燒室內的高濃度粒子流，利用該方法開展了高過載模擬沖刷條件下的絕熱層燒蝕特性研究及絕熱層抗沖刷能力的篩選試驗。For example, frp reinforced concrete is used to support or surround magnetic resonance imaging ( mri ) medical equipment, and frp is also used for the constructions of some seawalls, industrial roof decks, base pads for electrical and reactor equipment, anchor in rock and ground engineering and concrete floor slabs in aggressive chemical environments in order to promote the wide usage of frp and frp reinforced concrete structures, financed cooperatively by nationa l natural science foundation ( item : the research on mechanical performance of frp reinforced concrete beam reinforced ; number : 59978046 ) and henan illustrious youth science foundation, connected with the analysis methods of modern steel reinforced concrete structure, the thesis further studies the flexural performance of frp reinforced concrete beam through the systematic study on experimental data got from this kind of beams, systematically establishes the theoretical calculating system of the flexural performance of frp reinforced concrete beam in cooperation with the up - to - date analytical methods for reinforced concrete, which suits the properties of frp
例如，纖維增強塑料筋應用於支撐和圍繞磁共振成像醫療設備的混凝土中及海堤、工業頂棚、電設備、反應設備的基座、巖土工程中的錨桿、侵蝕性環境的混凝土結構等海洋工程、橋梁工程、路面工程、巖土工程、醫療及化工工程的建設。為了推動纖維增強塑料筋及其混凝土結構在工程中的廣泛應用，本文在國家自然科學基金（項目名稱：纖維增強塑料筋混凝土梁力學性能的研究；編號： 59978046 ）和河南省傑出青年基金的資助下，通過對纖維增強塑料筋混凝土梁正截面受彎性能試驗數據的系統分析，結合現代鋼筋混凝土結構學的分析方法，對纖維增強塑料筋混凝土梁正截面受彎性能進行了深入的研究，較系統的建立了適合於纖維增強塑料筋特點的纖維增強塑料筋混凝土梁正截面受彎性能的理論計算體系。Several key problems and their technical settlements were expounded emphatically, such as the accelerated corrosion test technique for aircraft structure under laboratory conditions, the evaluation technique for corrosion damage of anticorrosive coats, the distribution characteristics and their variation regularities of the corrosion damage and fatigue life, the corrosion equivalent relationship between the accelerated environment and the service environment, and the methods for theoretical analysis of the calendar life
重點對腐蝕環境下飛機結構加速腐蝕試驗技術、防腐塗層腐蝕損傷評定技術、腐蝕損傷和疲勞壽命的分佈特性及其變化規律、腐蝕當量關系和日歷壽命理論分析方法等幾個關鍵問題及其技術途徑進行了闡述和探討。Soil erosion and nutrient losses in jiangjiatang watershed in lanxi city in zhejiang province during exploitation was studied from 1993 - 2000 using adoptive research methods such as runoff plot, catchment area, and rare earth element tracer ( eu ), and the soil fertility index appraisal. the major conclusions are as follow : 1. the principle of water and soil losses together with nutrients and the forms in which they were lost were studied under different fanning systems in runoff plot
本研究選擇浙江省中部金衢盆地邊緣蘭溪市水土保持監督站蔣家塘小流域為研究試驗點，以協作單位蘭溪市水土保持監督站小流域開發試驗區為基礎，採用坡面徑流小區法、單源匯水試驗區出口實測法、穩定性核素- eu土芯示蹤法研究了2000年坡耕地不同農作措施水土流失規律及養分流失規律和小流域綜合開發過程中水土流失規律及養分流失規律，並對小流域侵蝕土壤的肥力現狀進行評價。The numerical simulation and experimental research made on the characteristics of the clearance cavitations in kaplan turbine are described herein ; in which the analysis mainly is concentrated on the characteristics of leakage - vortex caused by the flow of the clearance between blade tip and blade chamber, that occurs at the front - pressure side of the blade, and the intensity of the secondary - flow - vortex ; furthermore, the relationship in between the leakage - vortex, secondary flow vortex, cavitations and erosion are analyzed as well
摘要對軸流轉槳式水輪機輪緣間隙流動及空化特性進行數值模擬和試驗研究，重點分析輪緣間隙流動在正面頭部泄漏流動所引起的泄漏渦帶、二次流動的漩渦強度和空化特性，以及泄漏渦帶旋轉、二次流動的漩渦與空蝕和磨損之間的關系。Until now, there have been a few reports on the damage of the water pumps caused by sand and water cavitation. by use of the test loop for solid and liquid two phases, under the condition of 3 % head drop, the damage location and relative degree of the sand and water cavitaiton occurred on the impeller were tested and researched. the result was, them, compared with the results under the condition that water cavitation occurred and no cavitation but only wear occurred. the differencts were analyzed. the analysis result can be used as the basis of the further research and the improvement of the impeller shape
目前含沙水汽蝕對水泵損傷方面的報導甚少，本文利用固液兩相流試驗臺，對離心泵閉式葉輪在含沙水汽蝕時（ 3揚程下降點）的損傷部位和相對程度進行了試驗研究，並將此結果與清水介質發生汽蝕時的損傷情況[ 13 ]及含沙水無汽蝕情況下的磨損情況[ 7 ]相比較，對其差異進行了分析，為今後進一步探討葉輪損傷機理和葉型改進提供了實驗依據。Insulating and sheathing materials of electric and optical cables - common test methods - part 5 - 1 : methods specific to filling compounds - drop - point - separation of oil - lower temperature brittleness - total acid number - absence of corrosive compo
電纜和光纜用絕緣和護套材料.通用試驗方法.第5 - 1部分:填充復合物的專用方法.滴點.油分離.較低溫脆性.總酸值.無腐蝕性成分. 23 ?時的電容率. 23 ?和100 ?時的直流電阻率Common test methods for insulating and sheathing materials of electric cables. part 5 : methods specific to filling compounds. section one : drop - point - separation of oil - lower temperature brittleness - total acid number - absence of corrosive components - permittivity at 23 - d. c. resistivity at 23 and 100
電纜絕緣和護套材料通用試驗方法第5部分:填充膏專用試驗方法第1節:滴點-油分離-低溫脆性-總酸值-腐蝕性- 23時的介電常數- 23和100時的直流電阻率Insulating and sheathing materials of electric and optical fibre cables - common test methods - methods specific to filling compounds - drop point - separation of oil - lower temperature brittleness - total acid number - absence of corrosive components - permittivity at 23 c - d. c. resistivity at 23 c and 100 c
電纜的絕緣和護套材料.通用試驗方法.填充復合物的專用方法.滴點.油分離.低溫脆性.總酸值.無腐蝕性成分. 23時的電容率. 23和100時的直流電阻率Common test methods for insulating and sheathing materials of electric cables ; part 5 : methods specific to filling compounds ; section one : drop point ; separation of oil ; lower temperature brittleness ; total acid number ; absence of corrosive components ; permittivity at 23 ; d. c. resistivity at 23 and 100
電纜絕緣和護套材料的通用試驗方法.第5部分:填充復合物的專用方法.第1節:滴點油分離較低溫脆性總酸值無腐蝕性成分.在23時的電容率在23和100時的直流電阻率Common test methods for insulating and sheathing materials of electric cables - part 5 : methods specific to filling compounds - section 1 : drop point - separation of oil - lower temperature brittleness - total acid number - absence of corrosive components - permittivity at 23 centigrade degrees - d. c. resistivity at 23 centigrade degrees and 100 centigrade degrees
電纜絕緣和鎧裝材料的通用試驗方法.第5部分:填充復合物的專用方法.第1節:滴點.油分離.較低溫脆性.總酸數值.不腐蝕組分. 23下的電容率. 23和100下的直流電阻率Insulating and sheathing materials of electric and optical fibre cables - common test methods - part 5 : methods specific to filling compounds - section 1 : drop point - separation of oil - lower temperature brittleness - total acid number - absence of corrosive components - permittivity at 23 oc d. c. resistivity at 23 oc and 100 oc
電纜和光纜的絕緣和護套材料.通用試驗方法.第5部分:填充化合物的專用方法.第1節:滴點.油分離.較低溫脆性.總酸度數值.無腐蝕性成分. 23時的電容率和23與100時的直流電阻率Test of pitting corrosion resistance of stainless steels in the ferric chloride solution
不銹鋼三氯化鐵點腐蝕試驗方法分享友人