流動污染源 的英文怎麼說
中文拼音 [liúdòngwūrǎnyuán]
流動污染源
英文
mobile pollution source- 流 : Ⅰ動1 (液體移動; 流動) flow 2 (移動不定) drift; move; wander 3 (流傳; 傳播) spread 4 (向壞...
- 污 : Ⅰ名詞(臟水; 臟物) slops; sewage; dirt; filth Ⅱ動詞(弄臟) defile; dirty; smear Ⅲ形容詞1 (臟)...
- 染 : Ⅰ動詞1 (用染料著色)dye 2 (感染) catch [contract] (a disease) 3 (沾染) acquire (a bad hab...
- 源 : 名詞1. (水流起頭的地方) source (of a river); fountainhead 2. (來源) source; cause 3. (姓氏) a surname
- 流動 : 1. (液體或氣體移動) flow; run; circulate 2. (經常變換位置) going from place to place; on the move; mobile
- 污染源 : contaminant source
- 污染 : pollute; contaminate
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The car emitted a large quantity of deleterious exhaust gas in the megalopolis and at the building or mineral sites, which threatens badly the somatopsychic health of inhabitant and breaks the ecosystem equilibrium. being a flowing contaminative source, the automotive vehicles have become the " chief criminal " of air pollution
汽車作為一個流動的污染源,在人口密集的城市和交通發達的工礦地區,到處散發著大量廢氣,嚴重威脅著居民的身心健康,破壞著生態平衡,成為大氣污染的「罪魁禍首」 。The humankind is troubled seriously by a series of environmental problems, such as air pollution, ozonosphere destruction, glasshouse effect, acid rain, water pollution, land pollution and soil erosion and so on. all of these will stop our economy developing
大氣污染、臭氧層破壞、溫室效應、酸雨頻繁、水污染、土地污染、水土流失、草原退化、森林急劇減少、珍稀動植物滅絕、沙漠急劇擴大等一系列環境問題嚴重困擾著人類,各種公害接二連三地侵襲人類,再這樣下去,經濟將變成無源之水、無本之木。A river quality management model is proposed for the optimal waste load allocation in a tidal river basin, taking into account the impacts of stochastic pollutant discharge and dynamic hydrological conditions on water quality during a tidal cycle
摘要考慮污染源強隨機變化和感潮河流潮周期內動態水文條件對水質的影響,建立了優化污染負荷分配的流域水質管理模型。Aerosols generated from continental and marine sources are transported to each other ' s environment, meanwhile they change the chemical compositions of the atmosphere, influence the processes and velocity of atmospheric chemical reactions
陸地和海洋源產生的氣溶膠通過大氣的流動向對方的環境系統輸送,從而改變了對方環境大氣的化學組成,影響著大氣污染物的化學反應過程和反應速度,其沉降過程也會對對方的生態系統產生一定的影響。The change of indoor contaminating material concentration is dynamical simulated by adjusting the flow of fiowrator. at the same time, the path formulas of simulate pollutant source is modified by experiment, and providing theoretical base for dynamic simulation
通過調節轉子流量計的流量來達到動態模擬室內污染物質濃度的變化情況,並根據對實驗結果的修正得出裝配式潔凈室室內模擬污染源的軌跡方程,為動態模擬提供了理論依據。A two - dimensional double diffusive laminar natural convection in rectangular enclosure is detailed analyzed. the results show that when the thermal and solutal buoyancies aid each other, the airflow consists of one main cellular structure and is steady, regardless of the relative strength variation between the heat and pollutant sources. there are multiple flow structures, however, according to the relative strength when the buoyancies opposing each other
模擬結果表明雙擴散自然對流系統的空氣流動與傳熱傳質特性完全是由離散熱源與污染源浮升力之間的相互作用關系訣定的:當離散熱源與污染源浮升力協同作用時,自然對流呈比較穩定的單一流動結構;而當熱源與污染源浮升力對抗作用時,自然對流系統隨它們之間強度變化呈現出多種流動狀態。Article 5 as referred to in article 5 of this act, " the carrying capacity of a water body may not be exceeded when a water body is utilized to receive or convey effluents " means that any changes in the water quality of a water body that are caused by the total quantity of discharges from all pollution sources that use said water body to receive or convey effluents may not exceed the water body classifications and water quality standards determined pursuant to article 6 of this act
第5條本法第五條所稱利用水體以承受或傳運放流水者,不得超過水體之涵容能力,指利用水體以承受或傳運放流水之所有污染源,其排放之總量造成該水體水質之變動,不得超過依本法第六條所訂之水體分類及水質標準。Then a one - dimensional unsteady incompressible flow with moving pollutant source model was proposed. the continuity equation, momentum equation and convection - diffusion equation were discredited using finite volume scheme. thus a software for predicting the air velocity and pollutant in railway double track tunnels was developed
接著,根據雙線鐵路隧道運營通風的特點,建立了一維不可壓縮非恆定流和流動污染源的物理模型以及山相應的連續性方程、動量方程和對流擴散方程構成的數學模型;在此基礎上,利用數值計算方法,編制了一套雙線鐵路隧道運營通風的數值計算程序。Though hong kong has one of the best water systems in the world, long - term issues such as water reuse and management, deteriorating quality of water resources, pearl river water resources management, ecological management of east river, saline drinking water threat and sanitation technology should not be overlooked as industrialization and urbanization in the region increase
雖然香港擁有世界一流的供水系統,但隨著區內工業活動及城市發展高速增長,長遠來說仍需面對不少挑戰,如污水循環再用水源管理食水污染珠江河域水資源管理東江的生態環境管理食水受咸潮威脅及食水凈化技術等。Hydroelectric power exploitation can reduce sediment disposal, lengthen life of power plants in lower stream, control stream, better water quality, and reduce contamination etc. considering the structure of power of sichuan province and pointing out its six problems in power development, this thesis comes up with sustainale development strategy of sichuan hydroelectric power exploitation, that is, prefentially exploit large scale hydropower plant which has good water - adapting capability, comprehensively use water resource, try to reduce cost caused by drowning, stimulate rotating exploitation, well deal with settlement of people in hydroproject construction, and alleviate contamination
論述水電開發在減緩泥沙淤積、延長下游水電站壽命、調控水流、提高供水量、改善水質、提供清潔能源、減少環境污染等方面對長江上游生態屏障建設的作用。本文研究分析了四川水電開發的可持續發展戰略,首先對四川省電力結構現狀進行了分析,指出目前四川電力發展存在的六個主要問題,從優先開發具有良好調節性能的大型水電站、綜合利用好水資源,盡最大可能減少水庫淹沒損失,積極推進流域梯級滾動綜合開發,處理好水庫移民關系,減輕對環境的不利影響等六個方面論述了水電開發的可持續發展戰略。Study on agricultural movement of chaohu lake basin and nonpoint source pollution
巢湖流域農業活動與非點源污染的初步研究First of all, the vertical mixing law of point source in the river is studied
首先研究了河流中點源污染物排放的垂向紊動混合規律。Over the years, lrt technology has been upgraded to counter the negative effects of traffic jams, noise, environmental damage, air pollution, etc. featuring a small radius of curvature, multiple car units, modulated train set, enlarged cars both in transverse and longitudinal directions, low car floors, streamlined car design, advanced control systems, and flexible right of way, modern lrt systems have been successfully adopted to most environmental and social needs. they adequately display their merits as transportation systems ; i. e., the lrt system is able to co - exist with automobiles. the low car floor means that roads can act as station facilities, and passengers can get on and off the cars in the street
輕軌運輸系統lrt源起於歐洲街道電車street car ,街道電車一度在都市捷運化與私人機動化的浪潮沖擊下迅速沒落,但隨著都會地區機動車輛不斷增加,道路交通阻塞噪音環境破壞排放廢氣污染問題嚴重惡化之際,輕軌車輛技術已不斷提升,具備小轉彎半徑能力的聯結式車廂模組化列車編組車廂斷面長度加大加長低地板車廂流線型車廂設計,搭配先進控制系統及彈性的路權型式,使現代化輕軌系統具備有與生活空間結合重視環境問題與社會情勢並活用進化街車之都市交通工具等特徵與優點,如高性能輕軌列車與汽車共存,低底盤的車廂創造無障礙車站空間,道路即是車站設備,旅客可以在街區上下車,提供沿線居民高度的便利性,消除交通堵塞噪音及空氣污染等,輕軌系統並與街景充分的調和,成為活動的都市意象。To put into operation a large amount of non - linear load, make in harmony wave of rural power grids serious becoming in pollution, pass to rural local electric wire netting main in harmony analysis of wave source, put forward in order to restrain from insert rural power grids in harmony wave source voltage total in harmony wave distortion rate and the containing rate change last device number pulsating for increase of goal, increase the pulse of the current change device and install light specified value electricity active wave filter mix with passive wave filter near the harmonics source to control the wave in harmony
摘要大量非線性負荷的投運,使農村電網的諧波污染日趨嚴重,通過對農村地方電網主要諧波源的分析,最終提出了以限制接入農村電網的諧波源的電壓總諧波畸變率和各次諧波電壓含有率為目標的增加換流裝置脈動數,以及在諧波源附近裝設小額定值的電力有源濾波器配以無源濾波器的混合型電力濾波方式,以進行諧波治理。This paper studies on used the ac servo system based on ti dsp ( lf2407a ) and the foc and digital signal processing thorem, achieves following results : algorithm. we employ svpwm ( space voltage pwm ) algorithm, improve the efficiency of the electric source, and decrease the harmonious elements. we build the mathematic model of the system and simulate it on matlab platform, dsigne segmented pid regulator to adapt variable speed and widen the speed range. measurement. the velocity and electric current measuring, we adopt multi - sampling - rate and digital filter principles. as more improvements we make, the whole system gets a good results. pc control. the complete controlling system can be controlled remotely. so we develop the pc controlling program.
採用磁場定向脈寬調制演算法,提高了電源利用率,降低了逆變電壓的諧波,改善了電機的運行特性,降低了對電網的污染;在matlab平臺上建立了交流永磁同步伺服電機和電壓空間矢量脈寬調制控制系統的數學模型,在模擬的基礎上,對傳統pid調節器進行了改進,提出轉速調節器和電流調節器採用分段pid結構,根據給定轉速所處的區間,自動選擇相應pid調節器的參數,拓寬了調速范圍,提高了控制精度。Nickel metal hydride ( mh - ni battery ) becomes the first elect of the storage battery in motor industry, because of the excellent synthetic performance of mh - ni battery, such as high specific energy, long circle life, adapting to big currents discharge and no pollution
鎳氫蓄電池以其比能量高、循環壽命長、適合大電流放電、無污染等優異綜合性能,成為電動汽車用蓄電池的首選。在歐美各國新研製的電動汽車中,多以鎳氫電池為動力源。Conduct technical exchange for the preparation, implementation and quality assurance of on - line monitoring of major pollution sources in prdez
就珠江三角洲經濟區對重點污染源在線監測的準備、執行及質量保證工作,進行技術交流活動It can improve the utilize of power by fed back the power generated by motor machine to power - net, has the benefit of improving power factor, reducing the harmonious feeding back to the power - net and can enhance the performance of converters for the constant voltage of dc - link
該裝置能夠提高電能的利用率,把由電動機產生的再生能源回饋到交流電網,並且能提高裝置的功率因數,減少對電網的諧波污染。由於pwm整流,變頻器中間直流環節的電壓能保持穩定,提高了逆變器的調速性能。Eight sub - projects will be set up in the project by comprehensively considering the integrity and logic of the project and the synchronism and independence between the topics of sub - projects : 1 ) binary water cycle pattern and mechanism of water resource evolution in the haihe river basin ; 2 ) mechanisms for water cycle - driven ecological evolution and restoration in the haihe river basin ; 3 ) mechanisms of water environment evolution and basis for water pollution control in the haihe river basin ; 4 ) integrated simulation and forecast of water cycle and accompanying processes in the haihe river basin ; 5 ) water cycle - based basic theories and methodology for the assessment of utility of water resource utilization ; 6 ) process of farmland water cycle and mechanisms of high efficiency agricultural water utilization in the haihe river basin ; 7 ) mechanisms of evolution of binary water cycle system and safe, high efficiency water use in cities ; and 8 ) thresholds and patterns for the integral multi - dimensional critical control of water cycle in the haihe river basin
綜合考慮項目研究的整體性、邏輯性,以及課題研究的同步性、獨立性,項目將設置八個課題:海河流域二元水循環模式與水資源演變機理;水循環驅動下的海河流域生態演變與修復機理;海河流域水環境演化機理與水污染防治基礎;海河流域水循環及其伴生過程的綜合模擬與預測;基於水循環的水資源利用效用評價基礎理論與方法;海河流域農田水循環過程與農業高效用水機制;城市二元水循環系統演化與安全高效用水機制;海河流域水循環多維臨界整體調控閾值與模式。Mobile source control section environmental protection department
環境保護署流動污染源管制課( 1 )分享友人