水利發動機 的英文怎麼說
中文拼音 [shuǐlìfādòngjī]
水利發動機
英文
watermotor-
This paper utilizes computer technique and mcu, and realizes water - wheel dynamotor ' s wireless communication, vibration analysis, data acquisition and process, and so on
本文利用現代計算機與單片機技術,實現智能巡檢管理系統對水輪發電機組的振動分析、數據採集與處理等功能。School atmosphere bears close relations with teacher ' s creativity. democratic management is conducive to invigoration of teacher ' s creativi
總的說來,適度的動機水平、 2j焦慮水平和競爭程度是有利於教師創造性的發揮的。Many planets ( for example, ganymede, mercury, the earth, jupiter and saturn ) and stars ( for example, the sun ) possess intrinsic magnetic fields. the explanation for their existence and variation remains a great challenge to planetary scientists and astrophysicists. this article attempts to review some recent developments and difficulties in the study of magnetohydrodynamics for the electrically conducting fluid interiors of planets and stars. it is the fluid motions, usually driven by thermal convection, that generate and sustain magnetic fields through magnetohydrodynamic processes in planets and stars. in planets, the magnetohydrodynamic processes are strongly affected by the combined and inseparable effects of rotation, magnetic fields and spherical geometry. the key dynamics involves the interaction between the coriolis and lorentz forces. in the sun, it is the solar tachocline, a thin shear flow layer located at the base of the convection envelope, that plays an essential role in the solar magnetohydrodynamic processes which produce the 11 - year sunspot cycle. some results of a new nonlinear three - dimensional solar dynamo model are also presented
許多行星(如木衛三,水星,地球,木星和土星)和恆星(如太陽)具有內部磁場.對這些磁場的存在和變化的解釋對行星科學家和天體物理學家是一個巨大的挑戰.本文試圖總結行星和恆星的導電流體內部磁流體力學研究的新近發展和困難.一般由熱對流驅動的流動通過磁流體力學過程產生並維持在行星和恆星中的磁場.在行星中磁流體力學過程強烈地受到轉動,磁場和球幾何位型的綜合影響.其動力學的關鍵方面涉及科里奧利力和洛倫茲力間的相互作用.在太陽中其流線,即處于對流層的薄的剪切流層在太陽的磁流體力學過程中扮演了一個基本的角色,並由之產生了11年的太陽黑子周期.本文也給出了一個新的非線性三維太陽發電機模型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。I also summarized briefly the qualifications for tender agency, factors which would block the development of tender agents and the countermeasures, a nd anticipated the foreground of its development in water conservancy systems of hebei province, and then, i advanced my suggestion on the standardization of tendering and bidding procedures in the relevant projects ; i also analyzed the insufficiencies of decision - making system, documents study and circumstances research in the tenders. at the same time, i introduced the skills and strategies in the tendering and bidding, and advanced my analysis results and suggestions. through the introduction of the procedure from opening to evaluating and deciding the tenders, and the scores registration method on evaluating tenders, i pointed out the status quo and main problems occurred in the tendering and bidding in the construction of water conservancy projects in hebei province, and put forward my suggestion on the system of opening, evaluating and deciding of tender in the projects
在對招標人、招標代理機構和招標過程的法律規定與分析后,指出河北省水利工程建設招標人和河北省工程建設招標代理機構的現狀及存在問題,提出了市場經濟條件下,最合理的招標組織形式為招標代理,並簡述了招標代理機構的資格要求、河北省水利工程建設管理機制中阻礙招標代理機構順利發展因素及對策,預測了招標代理制度在河北省水利系統的發展前景,對進一步規范河北省水利工程招標活動提出建議;對投標過程中存在的投標決策、招標文件研究、投標環境調查不足之處進行了分析,同時介紹了河北省水利工程建設投標報價技巧及策略,對河北省水利工程投標活動現狀及存在問題提出規范化的分析和建議;通過對水利工程開標、評標、定標運行程序和河北省水利工程評標計分辦法的介紹,指出了河北省水利工程建設招標投標定標運行的現狀和存在的問題,提出了河北省水利工程建設開標、評標、定標運行體系的建議。It is respectively : production, facility for transporting operates personnel : jockey of lathe work, milling, grinding work, boring labour, solderer, modular machine tool, machining center jockey, casting matchs benchwork, besmear to install ship - fitter of ship - fitter of equipment of benchwork of labour, tool, boiler, electric machinery, discretion to control ship - fitter of appearance of ship - fitter of appearance of instrument of electric equipment ship - fitter, electron, electrical engineering instrument, machine ; irrigation works of aricultural herd fishing produces personnel : inspector of quarantine of the member that animal epidemic disease prevents and cure, animal, firedamp produces work ; personnel of line of business of commerce, service : the member that assistant, bagman, publication is issued, chinese traditional medicine purchase and sale, clerk of the member that the division of division of appraisal appraisal division, chinese style noodle, chinese style noodle, western - style cook division, western - style noodle division, division that move wine, nutrition distributes food, dining - room, antechamber clerk, client clerk, health care ; handle affairs personnel and concerned personnel : secretary, public relations member, the member that terminal of communication of computer operator, cartographer, operator, user is maintained
分別是:生產、運輸設備操作人員:車工、銑工、磨工、鏜工、焊工、組合機床操作工、加工中心操作工、鑄配鉗工、塗裝工、工具鉗工、鍋爐設備裝配工、電機裝配工、高低壓電器裝配工、電子儀器儀表裝配工、電工儀器儀表裝配工、機修鉗工、汽車修理工、摩托車維修工、精密儀器儀表修理工、鍋爐設備安裝工、變電設備安裝工、維修電工、計算機維修工、手工木工、精細木工、音響調音員、貴金屬首飾手工製作工、土石方機械操作工、砌築工、混凝土工、鋼筋工、架子工、防水工、裝飾裝修工、電氣設備安裝工、管工、汽車駕駛員、起重裝卸機械操作工、化學檢驗工、食品檢驗工、紡織纖維檢驗工、貴金屬首飾鉆石檢驗員、防腐蝕工;農林牧漁水利生產人員:動物疫病防治員、動物檢疫檢驗員、沼氣生產工;商業、服務業人員:營業員、推銷員、出版物發行員、中藥購銷員、鑒定估價師、中式面點師、中式面點師、西式烹調師、西式面點師、調酒師、營養配菜員、餐廳服務員、前廳服務員、客戶服務員、保健按摩師、職業指導員、物業指導員、物業治理員、鍋爐操作工、美容師、美發師、攝影師、眼鏡驗光員、眼鏡定配工、家用電子產品維修工、家用電器產品維修工、照相器材維修工、鐘表維修工、辦公設備維修工、保育員、家政服務員、養老護理員;辦事人員和有關人員:秘書、公關員、計算機操作員、制圖員、話務員、用戶通信終端維修員。As the tidal water level fluctuates twice daily, it fills and empties natural basins along the shoreline, suggesting that the currents could be used to drive water turbines connected to generators to produce electricity
海水每天波動兩次,因而沿著海岸線可以充滿和排空自然集水盆地,建議利用水流驅動渦輪機,再連接發電機進行發電。The augment of excitation setting " s control performance is fairly important to improve the static, transient and dynamic stability of power system, and enhance the setting " s utilization rating of the hydraulic turbine generator unit
提高勵磁裝置的控制性能,對于改善電力系統靜態、暫態及動態穩定性相當重要,並且可以提高水輪發電機組的設備利用率。There is difference frequency measurement requirement for every part of pid regulating, difference between dynamic quality and static quality in response time and accuracy. according to these, it use the interrupt functions and high - speed counter of the simens s7 - 200 plc cpu226 basic unit and some peripheral circuit to measure frequency ; in software designed, the procedure frame of hydraulic - turbine governor and disperse process of parallel pid are analyzed, an improved pid algorithm is adopted to realize a pid regulation mode with variable structure and parameters ; the mechanical liquid - pressure system of the hydraulic - turbine governor is with electric - hydraulic converter unit of step motor. according to the drive character of five phase of response step motor, a variable frequency regulated voltage driver unit is designed in order to realize interface between plc and driver of step motor
本文利用s7 - 200plc自身的特點設計了頻率測量單元,根據pid調節各個環節的特點,以及調速器動態特性、靜態特性對頻率測量的實時性和精度要求的不同,利用s7 - 200plc基本單元中內置的高速計數器以及相應的外圍放大整形、分頻電路,實現了水輪發電機組頻率的測量;在軟體上,對微機調速器的整個程序框架、並聯pid的離散化過程進行了分析,選用改進的pid演算法實現了變參數、變結構的pid調節模式;調速器的機械液壓隨動系統具有步進電機電液轉換元件,採用五相反應式步進電機,根據其驅動特性設計了變頻調壓驅動器,實現plc與步進電機驅動器之間數字介面。In this paper according to the design scheme of yao heba power station in nan yahe river, the mathematical model with longer and complicated conduit system, elastic water hammer and pid regulating low of voter turbine adjusting system in the case of the small fluctuation has being built, which include conduit system, surge tank, draft tube, water turbine, generator and governor. the hydraulic losses are taken into account, and nonlinearization in water turbine and the governor is also taken into account
本文根據南椏河姚河壩水電站的設計方案,對水輪機調節系統,按長引水管道復雜引水系統、彈性水擊、調速器為pid調節規律,在小波動情況下,對包括引水道、調壓井、尾水管、水輪機、發電機、調速器在內的水輪機調節系統建立數學模型,並計及引水管道水力摩阻損失,對水輪機、調速器考慮了其中的非線性,利用功能強大的matlab軟體編制了源程序進行計算機模擬計算。Francis turbine generator set of both vertical and horizontal types are suitable for water head from 10m to 300m. its feature is that the water flow enters the runner inward in a radial direction, changes direction gradually and then passes out axially
水斗式水輪發電機組適用於水頭80 ~ 800米,是利用水流動能沖擊水輪機轉輪旋轉作功,且其噴嘴的射流中心與轉輪在同一平面上。This paper take comprehensive development project - " enrich farmers through water conservancy ( eftwc project ) " in pinggu district, beijing as an example or research area, to built up indexes system for evaluating such projects based on the analysis of the project ' s functions ; to evaluate the effects of eftwc project on the development of agricultural economy in research area with statistic analysis method, such as the theory of gray system and regression analysis method. the key points of this paper are focused on as following aspects : ( 1 ) the value of eco - environmental benefits of eftwc project in pinggu district is evaluated based on utility value theory and environmental economic methods such as equivalent substitution approach, opportunity cost approach, and replacement cost ap proach ; ( 2 ) the economic effects on investment are appraised with both static and dynamic cost - benefit analysis methods ; and ( 3 ) the effects of the eftwc project on the economy and society sustainability in research area are evaluated synthetically from three aspects : society development ability, economy development ability and resources and environmental capacity
本文以北京市平谷區水利富民綜合開發工程為例,在分析了水利富民綜合開發工程功能的基礎上,建立了水利富民綜合開發工程效益價值評估的指標體系;用灰色系統理論、回歸分析等統計分析方法進行了水利富民綜合開發工程對平谷區農業經濟發展的影響評價;重點以效用價值論為理論依據,用等效替代法、機會成本法和重置成本法(恢復費用法)等環境經濟學方法,對平谷區水利富民綜合開發工程生態環境效益價值進行了評估;採用靜態和動態費用效益分析法進行了水利富民綜合開發工程投資經濟效果分析;最後從社會發展能力、經濟發展能力和資源環境承載能力3個方面進行了水利富民綜合開發工程對平谷區經濟社會可持續發展能力的綜合影響評價。Food rice, beans, spaghetti, spices, fruit, vegetables, jam, crackers, drinking water, daily necessities, blankets, chain saw, outboard motor, camera, rubber boots, machetes, container rental, monetary gifts, transportation and miscellaneous expenses
食物米,豆子,義大利面條,調味料,水果,蔬菜,果醬,餅乾,飲用水民生用品毛毯鐵鏟電鋸舷外發動機照相機膠鞋砍刀貨櫃租金慰問金雜項運輸費Note : data on expenditures on and personnel engaged in s & t or r & d activities in this book include those of enterprises or institutions of construction, transportation, post and communications, agriculture, geology and water conservancy industry, as well as r & d institutions subordinated to government departments, large and medium - sized enterprises and institutions of higher learning
注:本手冊的科技或研究與發展活動的人員與經費數據除包括政府部門屬研究與發展機構、大中型工業企業、高等學校外,還包括建築業、運輸郵電業、農業和地質水利業企事業單位的有關數據。With the utilization of oil - methanol - water composite fuels, constructions of diesel engines which are existing in our country, especially in the countryside, need not to be modified so that the investment of equipment can be reduced, and coarse methanol containing impurities can be utilized to cut down the costs
使用柴油-甲醇-水三元乳化燃料,可以不改變發動機的結構,直接利用社會上,特別是農村現有的大量的柴油機,減少設備投資費用;而且可以使用工業甲醇,降低使用成本,同時降低了大氣污染,有利於社會推廣。The dynamic simulating system used to do the research of governor control had been established by the device. the dynamic simulating tests of gahc used on steam turbine and hydro turbine had been done with the device. the tests were three phases short circuit, restoring synchronous operation and restraining low frequency oscillation in three - machines system
利用該裝置對gahc在汽輪發電機和水輪發電機上的控制進行了以下動模實驗:單機無窮大系統中三相短路故障實驗和發電機發生失步故障后的再同步實驗、三機無窮大系統中抑制低頻振蕩的動模實驗。Mackay is an australian company supplying radiator and engine hoses, suspension bushing, engine and transmission mountings, turbo charger hoses for worldwide vehicle applications including australian, european, japanese, korean, and north american vehicles
該公司經營水箱,發動機軟管,懸掛套管,發動機,波箱等,適用於澳大利亞,歐洲,日本,韓國,北美車型。Mackay is an australian company supplying transmission, radiator and engine hoses, suspension bushing, engine and mountings, turbo charger hoses for worldwide vehicle applications including australian, european, japanese, korean, and north american vehicles
該公司經營變速箱,水箱,及軟管,懸掛套管,發動機設備,渦輪管等,適用於澳大利亞,歐洲,日本,韓國,北美車型。Main products 370, 376, 480, 6130, aircraft fuel pumps series, die - casting pieces cradles series, water dispensers, cars neishi pieces, mechanical equipment, and other products of chinese medicine, not only for faw xiali, tianjin toyota motor, tianjin mai hing industrial, tianjin toyota engine, and shanghai automobile group car or car manufacturers focus on supporting one, while 6, 130 aircraft fuel pumps underwriting farm machinery company in north china, tianjin powered mechanical plant supply in the country
主要產品有370 、 376 、 480 、 6130等機油泵系列,壓鑄件支架系列、飲水機、汽車內飾件、中藥機械設備等產品,不僅為一汽夏利、天津豐田汽車、天津華利、天津豐田發動機,並且還是上汽集團奇瑞轎車的重點配套廠家之一,同時6130機油泵包銷于華北農機公司、天津動力機械廠,供貨于全國。( 4 ) the application of artificial neural network in the field was studied. by bp ( back - propagation networks ) neural network and rational choice of the calculation factor, the relation between the improved mixture composition and combustion rate, and that between the charge of ignition rocket and p - t curve were simulated. the model could exhibit in essence the inherent relation and the forecasted results were in good agreement with the actual testing results, which showed that the model could be used as a guide for the design of the composition and the ignition engine, and that artificial neural network could be employed in the field for the purpose of reducing experimental work of hazardous materials
( 4 )對人工神經網路在該領域的應用進行了研究,先後利用誤差反傳神經網路( bp網路) ,並選擇合理的計算因子,分別對改進耐水點火藥配方與燃燒速度以及點火發動機裝藥與p - t曲線進行了模擬,模型基本能夠反應它們之間的內在聯系,預測結果與實際測試結果基本吻合,模型基本能夠指導藥劑配方和點火發動機的設計,表明了人工神經網路可以應用於該領域以期達到減少危險品試驗的目的。分享友人