air demand 中文意思是什麼
air demand
解釋
需氣量-
Afd, air flow demand
要求空?量 -
Brownouts are sometimes caused by overloaded circuits and are sometimes caused intentionally by the ac utility company in order to reduce the power drawn by users during peak demand periods ( like during hot summers when everyone is using their air conditioners )
有時電路過載會引起電燈暗淡，有時供電公司有意這樣做，是為了在用電高峰期內降低用戶的用電量（比如在盛夏，每家人家都在使用空調） 。 -
By building a dam instead of new coal plants to meet its growing demand for electricity ， china will give off much less poisonous gases into the air
通過修建大壩而不是新的煤電廠，來滿足本國對電力的需求，中國將釋放更少的有毒氣體到空中。 -
In the hardware design, the paper completes modules ’ design like outside memory, patulous a / d, patulous d / a, rs232 communication, ecan communication, led control, keyboard control, distant control, emulation, reset, logic voltage switch, dsp supply power regulate and ac - dc power circuit, as well as room layout design like anterior panel, back panel etc. and dsp transfers data with peripheral equipments except outside memory using serial ports. besides, the whole circuit is configured in interrupt response. thus, it can meet system demand as well as take full advantage of tms320f2812 ’ s hardware resource. in the software design, the paper finishs programs like the interface programms intercommunicates with people, the distant control program, ad and da modules ’ control program, in addition, the paper select the velocity and acceleration state - feedback algorithm and is written in the program. the software design uses dsp integrate exploiting environment named ccs2. 2 of ti inc. as software instrument, and programs with the combination of c language and assembly language. moreover, in order to maintenance or modify the software expediently and shorten software ’ s exploitation time, the design adopt software modularization technique. finally, some air cylinder experiments are carried out to proved that the pneumatic controller is very practical
在硬體設計中，本文完成了片外存儲器擴展、 a / d擴展、 d / a擴展、 rs232通信介面、 ecan通信總線介面、液晶顯示控制、鍵盤控制、遠程控制、模擬、復位、邏輯電平轉換、 dsp工作電源校正電路和ac - dc電源等模塊設計以及控制器前面板、後面板等的空間布局設計。其中dsp與除外部存儲器的外圍設備之間的數據傳送全部採用串口通信，同時系統電路配置成中斷響應方式，這樣既滿足了系統要求，又充分利用了tms320f2812的硬體資源。在軟體設計中，本文完成了人機界面功能模塊、遠程控制模塊、 ad擴展模塊、 da擴展模塊、速度和加速度狀態反饋的控制演算法的程序設計。 -
This dust catcher fits for purifying air in the foundry workshop, especially place with high content of powder, high temperature and high demand on purification, such as sand shakeout clean and sand treatment
該除塵器運用於鑄造車間氣體的凈化，尤其是粉塵含量高氣體溫度高及凈化要求高的場合，如落砂清理砂處理工布等。 -
Respiratory protective devices - plug - in connection between lung governed demand valve and facepiece for self - contained open - circuit compressed air breathing apparatus for use by german fire brigade
呼吸保護器.德國消防隊用自調需氧量氧氣調節閥與獨立 -
David pang, chief executive officer of airport authority hong kong, says it is possible for the journey from hong kong to beijing to be reduced to 12 hours over land. undoubtedly, the expansion of roads and railways on the mainland will increase the catchment area for hong kong s air freight operators. in order to better serve the growing demand of the mainland and further strengthen hong kong s role as a regional air cargo centre and logistics hub, the hong kong airport logistics centre will be completed at the hong kong international airport in 2004, mr pang adds
內地在十五計劃期間，將全面擴展鐵路和道路網。香港機場管理局行政總裁彭定中表示，北京到香港車程有望縮短至12小時，內地的道路及鐵路發展計劃，無疑為香港空運業拓展了市場腹地。彭定中透露，香港國際機場的商貿港物流中心，將於2004年落成，以便更有效服務內陸腹地，鞏固香港作為區內空運及物流樞紐地位。 -
一 、 summarization with the development of society and the improvement of people " s living standard, people engage in social activities and productions, demand to construct many large span structures such as auditoria, exhibition hall, gym, air shed. space structures are most competitive and suitable structural shape to solve the problem of erecting wide span building structure
一、概述隨著社會發展與人民生活水平的提高，人們從事社會活動和生產，需要建造大跨度的會堂、展覽廳、體育館、飛機庫等大空間建築，而解決大跨度建築結構最具有競爭性的結構即是空間結構。 -
This paper combines the charicteristic of heilongjiang province power system such as supply exceeds demand, heating cycle in winter is long, arcola and personal heating is too much, air pollution is serious ect to rearch the realization machinism of electricity heating technology and actulization technology of electricity heating or heat storage
本文結合黑龍江省電力系統略有供過于求，冬季採暖周期長，小鍋爐及個人採暖多，空氣污染嚴重的特點，對電加熱採暖技術的實現機理和電（蓄熱）採暖的實施技術進行了較深入的研究。 -
Aiming at such problems in combustion system of homemade middle and miniature boiler, as a complex system with the character of dead zone, time variation, serious non - linearity, large time delay, coupling and a lot of disturbance, this paper presents a new set of optimal control resources. by using well - matched control method on system, stable automatic running is realized. having the serious divulgence coals difference a lot from each other in character, instability of chemistry, value of lowest emission of heat, home - made boiler controller is not at all ideal. instead of traditional model that controls the ratio based on proportional control or with the correct signal of the amount of oxygen, this paper, combined with intellect control theory - - fuzzy control and self - optimizing concept, propounded a kind of fuzzy self - optimizing controller to be used in air supplying system of the boiler, and expatiates on the idea of dividing the control process into two parts, dynamic and static to realize, thus meets the demand of homemade boiler economic running
本設計針對國產中、小型電站鍋爐燃燒系統參數時變、嚴重非線性、干擾因素復雜、耦合嚴重、模型不易確定的特點，提出多變量協調控制方案，解決了系統可控性差，難以實現穩定自動運行的問題；在此基礎上，改變以往以煙氣含氧量控制送風的傳統模式，針對國產電站鍋爐設備主體及一、二次送風迴路泄露嚴重，煤種混雜、成分不穩定、燃燒發熱值低、燃燒效率不高等問題，應用智能控制理論中的模糊控制技術，結合自尋最優控制的思想，設計了一種模糊自尋優控制器，應用在電站鍋爐送風控制系統上，並闡述了動靜態兩種實現途徑，通過在線優化風煤配比，實現最佳經濟燃燒，切實保障了鍋爐的經濟運行。 -
This article, through analysis different system radar ’ s superiority and limitation in target identification, proposes to unite the convention air defense radar ’ s echo characteristic and the electronic support sensory system ’ s aircraft - borne radiant characteristic, structure reasonable recognition system. it can satisfie the airplane target identification demand under the different background
本文通過分析不同體制雷達在目標識別上的優勢和局限性，提出把常規防空雷達回波特徵和電子支援偵察系統得到的機載輻射源特徵聯合起來，構造合理的識別系統的新思路，以此來滿足不同背景下對飛機目標識別的需求。 -
As a lot of 11m and 12m air - con buses were deployed in north west new territories to meet the demand, and more volvo baby super olympian in service, more dennis baby dragon were become spare in depot and when there need of air - con buses, baby dragon will be the first choice and as a result, they were very easily seen on routes serving the urban area including the long journey express route
因新界西北路線空調化計劃，大量市區十一米及十二米空調巴士被徵調到該帶服務，加上短超豪投入服務，令到大量丹尼士短龍成為后備車，故此空調巴士路線要使用后備車時，短龍便成為首選，令到多條九巴?區路線，甚至長途特快線出現它們蹤影。 -
The results indicated that the dimension, shape and purity of base material could meet the functional demand of solid lubricant ; the thermal decomposition temperature of ptfe resin exceeds 400 c, but organic and inorganic packing filler added in ptfe made the water absorption rate of composite material increased, melting temperature and decomposition temperature decreased, in the meanwhile oxidative decomposition reaction was accompanied ; polar groups such as c = o, c - o - c and so on in the carbon fiber surface is advantageous to increase compatibility with other components and interlayer shearing strength ; uniform design experimental method could help to find the relationship between formula and frictional property by relatively small tests. the developing trend of each formula ' s friction coefficient could be showed by fitting curve ; the friction coefficient with no copper powder or graphite in formula was relatively big. this fact showed that copper powder and graphite should be used cooperatively ; it was found that when the ratio of copper powder to graphite by weight is 15 : 60, 30 : 30 - 40 and 60 : 15 - 30 respectively, the friction coefficient was relatively small. the degree of crystallinity of pure ptfe reached maximum by air cooling and the abrasion loss also reached maximum among three ones ; at the same time, the abrasion loss of solid lubricant sample was also the biggest among three ones ; when solid lubricant matched with 45 # steel axle or gcrl5 steel axle, lubricant transfer film could be formed on metal surface, thus direct contact between the surface of metal friction pair rings was reduced. their working life was elongated extremely ; there was mainly much graphite, a little ptff, moo3, feso4, cus and so on in lubricant transfer film
試驗結果表明：所選原料的尺寸、形狀及純度可滿足固體潤滑劑的性能要求；聚四氟乙烯樹脂熱分解溫度超過400 ，但在ptfe中加入無機填料會使復合材料吸水率提高，熔融溫度及分解溫度降低，且伴有氧化分解反應；碳纖維表面含有c = o及c - o - c等極性基團，有利於提高其與其它組分的相容性，提高層間剪切強度；均勻設計試驗方法能夠用較少的試驗次數找出配方與摩擦性能間的關系，擬合曲線基本能表示各配方的摩擦系數發展趨勢；配方中不加銅粉或不加石墨，其摩擦系數均較高，說明銅粉和石墨應該配合使用；當銅粉15份、石墨60份時，銅粉30份、石墨30 - 40份時，銅粉60 、石墨15 - 30份時，摩擦系數均具有較低值；純聚四氟乙烯樹脂在空氣冷卻時結晶度最大，磨損量也是三者中最大的；同時，固體潤滑劑試樣在空氣冷卻時的磨損量也是三者中最大的：不論是固體潤滑劑與45 #鋼軸配副或是固體潤滑劑鑲嵌入銅套后與gcr15鋼軸配副，在金屬表面均可形成潤滑轉移膜，從而減少金屬摩擦副表面間的直接接觸，大大延長其使用壽命;轉移膜中主要含有較多的石墨、少量聚四氟乙烯、 moo 。 -
The study found that the full impact of economic growth only started to affect demand for long - haul air travel when gdp per head reached $ 15, 000
研究發現，只有在人均gdp達到1 . 5萬美元時，經濟增長產生的全面影響才開始影響長途航空旅行需求。 -
The finished fascination of his air come chiefly from the absence of demand and assumption.
他那神情的優美迷人之處，主要來自他的一無所求和他的毫不自負。 -
Absorbs air demand savings through shared load
通過分擔負載，節約能源 -
Cold weather depressed the demand for air conditioners
寒冷的天氣使冷氣機的需求萎靡不振。 -
In the long run, aircraft landing and departing simultaneously on both runways will be considered as air traffic demand increases
長遠而言，當空中交通需求量增加達到一定水平時，將考慮使用兩條跑道同時處理航機升降。 -
Intake valve ： automatically controls the volume of discharge air from 0 to 100 % by matching hte demand of the system air
進氣閥：根據系統氣體的要求， 0 - 100 %自動調節進氣量。 -
After joining wto, chinese air transportation will encounter an increasing domestic demand and the threat from foreign airlines
加入wto后，中國航空市場面臨國內需求劇增的機遇和國外航空公司搶攤的危機。
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