primary fuel 中文意思是什麼
primary fuel
解釋
初級燃料-
Ultrasonic has being attracted much attention gradually in fuel atomization because of some specialities of cavitation and infection on liquid flow. in the course of atomization of pitchy oil, especially, does it show greatly its advantage, but its material atomizational mechanism need research ulteriorly. the primary content of this thesis is about adding cantilever reed to effervescent atomizer so as to combine ultrasonic and effervescent. this thesis has discussed ultrasonic some mechanism, ultrasonic dynamical procreator, effervescent and liquid mucosity infection on atomization, at the some time we make some experiments and discuss atomization rule following some machinery parameter and run parameter so as to find some rule about ultrasonic atomization and to rich the research of ultrasonic atomization mechanism. all that will be beneficial to the design about ultrasonic atomization atomizer
超聲波由於其空化機理及對液體的流變性影響等特性，在燃油霧化燃燒中逐步引起人們的重視，尤其在重渣油等高粘度液體的霧化過程中逐步顯示出其優越性，但其具體的霧化機理還需要做進一步的研究在氣泡霧化噴嘴基礎加入懸臂式簧片哨，將超聲波與氣泡霧化相結合是本文討論的主要內容本文從研究超聲波的一些機理入手，討論了超聲動力發生器氣泡霧化以及液體粘度對霧化質量的影響，並通過具體的實驗，根據實驗數據來討論霧化質量隨各種結構參數運行參數的變化規律，以便找到超聲霧化的一些規律，豐富對超聲霧化機理的研究，對超聲霧化噴嘴的設計具有一定的指導意義。 -
The author analyzes the change rules of fuel consumption and the mass of the main exhaust emission pollutants ( nox, pm, co, hc and carbon ) with the operating parameters ( speed and load ), points out that nox and pm are the primary exhaust emission pollutants which affect the turbocharge - intercooled diesel engine to reach the requires of emission regulations, and map the figure of compositive exhaust emission characteristic
分析了有效燃油消耗率及各主要排放污染物（ nox 、 pm 、 co 、 hc 、碳煙）的排放量隨運轉參數（轉速n與平均有效壓力p _ （ me ） ）的變化規律。指出nox與pm是影響增壓中冷柴油機排放達標的主要排放污染物，並繪制了排放綜合特性圖。這為該類型柴油機的性能分析提供了參考。 -
I. e. fuel cladding, primary circuit and containment to prevent the release of these fission products to the environment
即燃料包殼一迴路及安全殼，以防止裂變產物外泄，影響環境。 -
I. e. fuel cladding, primary circuit and containment ) to prevent the release of these fission products to the environment
（即燃料包殼、一迴路及安全殼） ，以防止裂變產物外泄，影響環境。 -
Effects of different fuel - air ratios and different geometric parameters of dual - stage swirler ( such as inner diameters of the primary swirl and secondary swirl passages, outer diameters of the secondary swirl passages, vane angle of the primary and secondary swirler, the distance of the flare exit from throat etc ) on combustion performances are studied experimentally. the experimental results show that radial profiles of the outlet gas temperature 、 combustion efficiency 、 emissions of co2 、 co and nox and lean blowout are affected with different degrees by the different geometric parameters of dual - stage swirler and the arrangement of primary holes
在不同油氣比下，不同的雙級旋流器幾何參數（例如:一級與二級旋流器出口內徑d 、葉片安裝角、二級旋流器出口外徑d 、二級旋流器的喉道到出口截面的距離l和喉道前後的圓弧半徑r以及主燃孔孔布局等）對單頭部環形燃燒室的出口溫度分佈、燃燒效率、貧油熄火油氣比以及污染物（ co _ 2 、 co和nox ）排放等燃燒性能的影響規律進行了研究。 -
Minimal fuel guidance is the primary demand for lunar soft landing
對于月球軟著陸，燃耗最優是制導過程的基本要求。 -
Abstract : minimal fuel guidance is the primary demand for lunar soft landing
文摘:對于月球軟著陸，燃耗最優是制導過程的基本要求。 -
Primary experimental study on the performance of water - ramjet engine and the magnesium - based fuel
鎂基水反應金屬燃料及水沖壓發動機初步試驗 -
The effects of such elements as primary flow total pressure, flow rate, degree of fuel rich, nozzle structure, flying speed and secondary combustion on ejecting mode performance were researched. it was found that thrust augmentation can be achieved on the condition that the flying mach number is above 0. 7. to deeply analyze thrust augmentation mechanism in low speed range, the research was further continued by changing secondary combustion organization and aft - body configuration
研究了一次流總壓、流量、富燃程度、噴管結構、二次流來流速度、二次燃燒組織對引射模態性能的影響，發現實驗樣機構型在0 . 7ma以上的飛行條件下可以獲得推力增強，而在0 . 7ma以下無推力增強。 -
With fast development of our country " s gas industry and air ' s increasingly serious contamination in city, using gas instead of coal and supplying energy in high efficiency and cleanliness has become necessary way in city. there are different problems in the current heating ( air conditioning ) systems. in the cogeneration system, heat and power affect each other, heating - pump heating ( aie conditioning ) system can not satisfy the peak load very well, the cost of gas fuel in boilor heating sestem is so high. the high generating efficiency of the diesel - engine two - sourse heating ( air conditioning ) systems is limited in range of 100kw - 1000kw, the heating scope is so limited. combined cycle of two sourse heating ( air conditioning ) system is most suitable selection to buesness community with big scope my paper aim at this syetem ' s primary question when it is applied in our country - - - - bringing project into execution and technology economy feasibility and off - design performence, combined with a certain demonstrating project in beijing buesness community, going along with calculating and analyzing, drawing out some efficient datas and conclusions, based on this, bringing out primary alements affecting combined cycle of two sourse heating ( air conditioning ) system " economics
熱電聯產系統熱電相互牽連，熱泵供暖（空調）系統不容易很好地滿足尖峰負荷，鍋爐供暖系統供熱中天然氣燃料構成的成本過高，內燃機雙源供暖（空調）系統的高發電效率僅限於100kw - 1000kw負荷范圍，供熱面積有限。對于大面積的商業園區、居民小區，燃燒天然氣的燃氣-蒸汽聯合循環雙源供暖（空調）系統是最佳選擇之一。本論文針對該系統在我國應用時的主要問題- - -方案的技術實施與技術經濟可行性，結合北京某一商業園區示範工程，進行了系統的計算與分析，得到了有效的數據與結論，在此基礎上，提出影響聯合循環雙源供暖（空調）系統經濟性的主要因素，並進行敏感性分析，得出有益的結論；最後通過各種供暖方案的比較分析回答了某些人對該系統的疑慮和不解，並指出系統的優化方向。 -
The primary source of excess atmospheric carbon dioxide is fuel burned for transportation and the making of electricity. cutting down the world s forests adds to the problem, as the harvested trees can no longer take carbon dioxide from the air. bbc s world edition also discussed the rising acidity of the world s oceans
由於交通運輸和發電而燃燒煤礦和石油所產生的廢氣，是造成大氣中二氧化碳過多的最主要因素，而濫砍森林亦使得問題更趨嚴重，因為這些被砍伐的樹木再也無法吸收消化空氣中的二氧化碳。 -
The primary function of reactor protection system is to protect the integrity of the three nuclear safety barriers, namely, fuel cladding, primary pressure boundary and containment. when the certain safety limits, determined by the accident studies, are exceeded, the reactor protection system will give the protection signals of reactor trip and / or safeguard actuations, and then the reactor trip system and / or the engineered safety features are actuated
反應堆保護系統的功能主要是保護三道核安全屏障（燃料包殼、一迴路壓力邊界和安全殼）的完整性，當運行參數達到危及三道屏障完整性的閾值時，保護系統動作觸發反應堆緊急停堆和啟動專設安全設施。 -
When this control strategy is applied into primary steam temperature and boiler fuel regulating systems, benign control effect can be obtained
這種控制策略用於主汽溫和鍋爐燃料調節系統中，取得了良好的控制效果。 -
Dynamic matrix control ( dmc ) can directly treat with objects with pure delay, has strong adaptability to large inertia, approved tracking performance and better robustness, but primary steam temperature object and boiler fuel regulating object are both intricate objects with large inertia and time delay, which are difficult to obtain perfect control effect using routine pid cascade control
由於動態矩陣控制（ dmc ）能直接處理帶有純滯后的對象，對大慣性有很強的適應能力，有良好的跟蹤性能和較強的魯棒性，而主汽溫對象和鍋爐燃料調節對象均是具有大慣性大延遲的復雜對象，用常規pid串級控制難以取得理想的控制效果。 -
Four conclusions were obtained : 1 ) the ideal maximum performance of rbcc engine is basically determined by the match of rbcc " s basic operating parameters such as the ratios of primary / secondary mass flow rate, total pressure, total temperature and the ratio of overall oxidant / fuel mass flow rate, etc
主要獲得如下結論： 1 ）基本工作參數的匹配，如引射比、總壓比、總溫比，決定了引射發動機最大可能獲得的性能。 -
As an example of 3d program with high quality mesh, proper boundary & initial conditions and ingenious simulation strategy, numerical analysis of flow - fields in hylte nozzle and cavity of dfcl running on fuel system of ( nf3 + h2 + he ) / d2 and experimental stagnation parameters, has been performed using vibration - state - unbalance & rotation - state - balance model, and a detailed kinetic model including 111 one - way primary reactions expressing by finite rate equations between thirteen species. the coefficients of transportation used in the analysis are calculated by employing the formulas of molecular kinetics
新建立的三維程序在高質量網格、合理的初邊值以及模擬方案基礎上，採用振動非平衡?轉動平衡模型和有限速率方程表達的111個單向基元反應的化學動力學模型，利用分子運動理論計算的輸運系數和工程實驗採用的滯止參數，對運轉（ nf _ 3 + h _ 2 + he ） d _ 2燃料體系的df激光器的hylte噴管和光腔進行了數值模擬分析。 -
Right. set primary fuel pumps. main engine start
好，打開主燃料泵，主引擎啟動 -
Anaerobic exercise burns glycogen as its primary fuel, while causing the body to store fat
無氧運動以糖原質作為首要的能源消耗，同時使脂肪在身體內聚積。 -
For this reason the chinese government has identified lng as a priority source of china s future energy needs and plans to increase the use of natural gas from the current three per cent of the primary fuel mix to six per cent by 2010 and 10 per cent by 2020
由於這一原因，中國政府將液化天然氣做為中國未來能源需求的首選來源，並計劃將天然氣的用量從目前占燃料總量3 %的比例增加到2010年的6 %和2020年的10 % -
For this reason ， the chinese government has identified lng as a priority source of china ' s future energy needs ， and plans to increase the use of natural gas from the current three per cent of the primary fuel mix to six per cent by 2010 ， and 10 per cent by 2020
由於這一原因，中國政府將液化天然氣做為中國未來能源需求的首選來源，並計劃將天然氣的用量從目前占燃料總量3 %的比例增加到2010年的6 %和2020年的10 %
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