排空試驗 的英文怎麼說
中文拼音 [bèikōngshìyàn]
排空試驗
英文
depletion test-
Analysis of experimental data indicates that there exist several following problems during the whole operation : first, the emission is serious and the density of hc and co smoke is very high at on and off period. second, there is oil dripping from the dripping vitta as a result of the fault of ignition system and combustion structure. the last, there might be accidents of disabled ignition resulted from the improper operation at the beginning
通過對樣機的試驗分析和研究表明，汽車空氣燃油加熱器在整個工作過程中，其排放存在以下三個問題：一、開機和關機兩個階段的排放問題嚴重，廢氣中hc和co的濃度值及煙度測量值都很高；二、因點火系統和燃燒結構的缺陷而導致開機后一段時間內有油滴從滴油管滴落；三、在點火過程中，會出現因操作不當而點火失效的現象。In this thesis hydraulic experimental studies and theoretical analyses on the vortex - flow drop shaft were conduced and the following results were accomplished : ( 1 ) in the model test some hydraulic characteristics including the shape of air core in the center of the drop shaft, the radial distribution of water flow velocity and the distribution of pressure on the wall of the drop shaft were measured under the condition of high water head above 250m and large discharge above 1400m3 / s. ( 2 ) a kind of computational method for the spiral water flow in the air core region of drop shaft was discussed and applied and the results agree the experimental data well. ( 3 ) the total ratio of energy dissipation in the drop shaft can reach 90 % and the energy dissipation in every region was discussed quantitatively
本文通過試驗研究與理論分析對旋流式豎井泄洪洞應用於高水頭、大泄流量情況時存在的一些水力學問題進行了研究和探討，取得以下主要成果：一、結合小灣工程導流洞改建，對高水頭（ 252m ） 、大泄流量（ 1400m ~ 3 s ）條件下旋流式豎井中的水流運動特徵進行了比較全面的測量，包括空腔形態、徑向流速分佈及井壁壓強等；二、提出了豎井空腔段螺旋水流水力計算方法，其計算結果與實測值吻合良好；三、利用試驗與計算結果，對旋流式豎井的消能機理進行了探討，對豎井各部分的消能能力有了總體認識；四、對豎井下部消力井的合理井深進行了優化試驗研究，發現消力井合理深度為0 . 9d左右；五、通過試驗研究，歸納出豎井水流總摻氣量估算方法，為導流洞排氣方案的設計提供了參考依據；六、在高水頭、大流量條件下，豎井空腔段下部流速很高，盡管水流螺旋運動引起的離心力可以確保井壁壓強保持正壓，但空化數依然較低，因此豎井的空化空蝕始終是工程界關注的重大問題。Introduce a pilot emissions trading scheme among power plants in hong kong and guangdong to optimise the use of resources in the reduction of emissions in the same air shed as part of our current programme with the guangdong provincial government to improve air quality in the pearl river delta region
在香港與廣東省的發電廠之間進行排污交易試驗計劃，以期善用資源，在同一空氣域減少廢氣排放。這是與廣東省政府改善珠江三角洲空氣素質計劃的一部分。Characterization of air quality - stationary source emissions - method for the determination of the mass concentration of sulphur dioxide : hydrogen peroxide barium perchlorate thorin method
空氣質量表徵方法.第4部分:固定排放源.第1節:二氧化硫質量濃度測定方法:過氧化氫高氯酸鋇釷試驗法Chemical breath analyser - estimation of the alcohol impregnation by analysis of expelled air - specifications and test methods
化學呼吸分析儀.對排出的空氣進行分析以估計乙醇浸透度.規范和試驗方法Class 1 electronic breath analyser - estimation of the alcohol impregnation by analysis of expelled air - specifications and test methods
1級電子呼吸分析儀.對排出的空氣進行分析以估計乙醇浸透度.規范和試驗方法Class 2 electronic breath analyser - estimation of the alcohol impregnation by analysis of expelled air - specifications and test methods
2級電子呼吸分析儀.對排出的空氣進行分析以估計乙醇浸透度.規范和試驗方法After thermodynamic calculation on several operation conditions of the furnace, cold - state flow and resistance mensuration, the combustion of the tubular - furnace hearth was changed into swirl and addition of radiate cylinder and oxygen content detection minish 1. 25 surplus air to less than 1. 15, improving the combustion condition and convection and radiate heat transfer efficacy, resuling in reducing the waste - gas temperature 45, decreasing exhaust gas loss, and saving fuel by 6 %
摘要通過對加熱爐幾種工況進行熱力計算、冷態試驗的流場分佈及阻力測定和熱態試驗的爐膛溫度場分佈及管壁溫度等參數的測定，確定將管式加熱爐爐膛內直流燃燒改為旋流場燃燒和增加輻射筒，增設煙氣含氧量分析，可以將燃燒的過剩空氣系數從1 . 35減小到1 . 15以下，極好地改善爐膛內的燃燒狀況和對流輻射傳熱效果，從而降低排煙溫度45 ，減少加熱爐排煙損失，節約了煤氣量6 %以上。This paper studies the air - fuel ratio and light - off temperature performance of two different kinds of cng special oxidation catalyst converter, and primarily finds their purification capacity of cng engine emission and the differences between them by comparative analysis of the test results
摘要對兩種天然氣專用氧化型催化器進行了空燃比和起燃溫度特性試驗，對比並分析了試驗結果，初步了解了兩種催化器時天然氣發動機排放的凈化能力以及它們之間的性能差異。Specification for testing of positive displacement compressors and exhausters - methods for simplified acceptance testing for air compressors and exhausters
容積式壓縮機與排氣機的試驗.第2部分:空氣壓縮機與排氣機的簡化驗收方法In order to investigate the unsteady flow frequency domain performances of an axial flow compressor at different mass flow, rotating speed and blade row spacing, plus inlet flow distortion, and considering aerodynamic characteristics and stability of the compressor, the low speed research compressor ( lsc ) at college of energy and power in nuaa is used to carry out the experiment studies. a large amount of test data has been gained through dynamic pressure transducers embedded in the stator blades at the tip, middle and hub section, then fast fourier transform algorithm ( fft ) is applied to calculate the frequency data
為探討軸流壓氣機在工作流量、工作轉速及動?靜葉排軸向間距變化時的葉片排流場非定常頻譜特性變化規律，並耦合進氣畸變的影響，同時與壓氣機氣動性能和氣動穩定性相關聯，作者利用南京航空航天大學能源與動力學院的低速大尺寸軸流壓氣機（ lsc ）試驗器，採取在靜子葉片表面埋入動態壓力傳感器的實驗方法，對葉尖、葉中和葉根三個截面的動態壓力進行了測量，獲得了大量的可靠的實驗數據。Test a long time before they found the box is mine and so simple
試驗很久才發現空格是排雷的，於是就簡單了。The experimental results indicated that if the emptying scour was employed in the changma reservoir, the deposition in the reservoir could be efficiently driven out and the reservoir life can be extended
選擇水庫運用過程中兩個關鍵性的淤積高程，進行對水庫排沙不利的豐水豐沙年和枯水豐沙年兩個水文年7月份水沙過程泄空沖刷試驗。Standard test method for vacuum drainage of asbestos - cement mixes
石棉水泥混合料真空排放的標準試驗方法Safety of machinery - evaluation of the emission of airborne hazardous substances - emission rate of a specified pollutant - bench test method using the real pollutant
機械安全.空氣中有害物質排放的評估.特定污染物的排放率.實體污染物的試驗臺試驗方法Of the progress of the discussions with the mainland authorities on the trading pilot scheme, and the level of air pollution reduction which the scheme expects to achieve
（一）與內地機關就排污交易試驗計劃進行討論的進展，以及預期這項計劃能夠在多大程度上減少空氣污染；Experimental study on the heat recovery exchanger of the exhaust air of air conditioning system
空調系統排風熱回收換熱器的試驗研究Test method for installation acceptance of plastic gravity sewer lines using low pressure air
使用低壓空氣對塑料自流排水管道進行安裝驗收的試驗方法Some problems from the principal stress axis rotation experiment with hollow cylinder apparatus are analyzed in detail herein ; which consists of three aspects, such as the preparation of the hollow cylinder sample and the acquisition of the isotropic one ; the estimation and elimination of the size effect and the end effect in the experiment ; and the membrane penetration effect on both the drained and the undrained tests results, etc
摘要詳細分析了採用空心圓柱儀進行主應力軸旋轉試驗遇到的若干問題，主要包括三個方面：空心圓柱試樣制備及各向同性試樣的獲得；試驗中尺寸效應、端部效應的考慮與消除；空心試樣膜嵌入效應對排水、不排水試驗結果的影響等。Test code for the determination of airborne acoustical noise emitted by household and similar electrical appliances - particular requirements - particular requirements for vacuum cleaners
測定家用和類似用途電器氣載噪聲排放試驗規程.專門要求.真空吸塵器專門要求分享友人