high-water channel 中文意思是什麼
high-water channel
解釋
洪水河槽-
At first, this paper analyzes the factors of water - sand influencing water level of yellow river and the feasibility just using the factors of water - sand to study water level, and collects the corresponding data ; secondly, because there are strong nonlinear relation in the corresponding data, by meticulous theory analysis, this paper integrates basic nonlinear analysis method, theory of random analysis, method of least squares and so on. it puts forward a method which can get the high accuracy simulation of the data, perfects the multi - factor analysis of variable ( over three factors ) of the statistic ; thirdly, it applies the method to the approximation of corresponding water level process which belong to the capacity of sand of middle - high and middle - low, and get the high - accuracy simulation about the typical nonlinear relation ; at last, this paper definitudes the main influence mode that the capacity of sand. it mainly unite with other factors to work on the water level in the yellow river lower reaches ; mor eover, this paper analyzes the difficult point and the direction of improvement to realize the accuracy forecasting of the flood level of erodible - bed channel
首先，系統分析了影響黃河水位的水沙因素，及僅用水沙因素有效研究水位的可行性，並按變量對應思想採集它們的相應數據；其次，由於相應水位過程數據中含極強的非線性關系，本論文經細致的理論分析，將基本的非線性分析方法、統計建模方法、隨機分析理論、最小均方誤差原則等等數學理論及方法有機揉合，提出了能有效實現這類數據高精度擬合的分層篩選法，並改進了統計學中多因子（三個以上）方差分析法；再次，將這一方法用於黃河中高及中低含沙類洪水相應水位過程的擬合，實現了這一典型非線性關系的高精度擬合，各年汛期上下游相應洪水位過程的擬合誤差都較小；最後，明確黃河下游含沙量對水位的主要影響方式，即含沙量主要是與其它因素聯合對水位作用；另外分析了要實現變動河床洪水位過程準確預報的困難所在及改進方向。 -
We fixed up a short forked stick to hang the old lantern on, because we must always light the lantern whenever we see a steamboat coming down - stream, to keep from getting run over ; but we wouldn t have to light it for up - stream boats unless we see we was in what they call a " crossing " ; for the river was pretty high yet, very low banks being still a little under water ; so up - bound boats didn t always run the channel, but hunted easy water
我們豎起一根矮樹杈子，把那盞舊的燈掛了上去，因為每當有輪船往下游開來，我們必須點亮這盞燈，防止它把我們撞翻。不過，有上水的輪船開來，我們不用點燈，除非我們發現自己漂到了人家所說的「橫水道」上，因為河水還漲得很高，很低的河岸還有一小部分淹沒在水下，因此上水的船往往不闖這個水道，而尋找流得慢一些的水道走。 -
According to the request of this subject, we have developed the system hardware and software for the slave device and the inspection software running on the pc. in this paper all of the followings is illustrated detailedly, such as the research on the principles of measurement and its realization, three means of water - level measurement that are separately based on photo electricity coder, pressure sensor and potentiometer ; selection of the microchip, we choose an advanced integrated soc ( system on chip ) microchip c8051f021 as the main controller ; realization of signal sampling, processing and its conversion in the mcu ; application of high precision 16 bits adc cmos chip - - ad7705 in our system, designing its interface with the microchip and relevant program ; using a trickle charge timekeeping chip ds1302 in the system which can provide time norm and designing of its i / o interface and program ; additionally, a 4 ~ 20ma current output channel to provide system check - up using ad421. in the system, ad421, ad7705 and the microchip compose spi bus ; to communicate with the master pc, here we use two ways which are separately rs232 and rs485 ; moreover, there are alarm unit, keyboard unit, power supply inspection unit and voltage norm providing unit in the system
針對研製任務的要求，課題期間研製了下位機系統硬體和軟體，開發了上位機監控軟體，其中所作的具體工作包括：測量原理的研究和在系統中的實現，在本次設計中用三種方法來進行水位測量，分別是旋轉編碼器法、液位壓力傳感器法和可變電阻器法；主控晶元的選擇，我們選用了高集成度的混合信號系統級晶元c8051f021 ；實現了信號的採集和處理，包括信號的轉換和在單片機內的運算；高集成度16位模數轉換晶元ad7705在系統中的應用，我們完成了它與單片機的介面設計及程序編制任務；精確時鐘晶元ds1302在系統中的應用，在此，我們實現了用單片機的i o口與ds1302的連接和在軟體中對時序的模擬，該晶元的應用給整臺儀器提供了時間基準，方便了儀器的使用；另外，針對研製任務的要求，還給系統加上了一路4 20ma模擬信號電流環的輸出電路來提供系統監測，該部分的實現是通過採用ad421晶元來完成的，本設計中完成了ad421與單片機的spi介面任務，協調了它與ad7705晶元和單片機共同構成的spi總線系統的關系，並完成了程序設計；與上位機的通信介面設計，該部分通過兩種方法實現： rs232通信方式和rs485通信方式；系統設計方面還包括報警電路設計、操作鍵盤設計、電源監控電路設計、電壓基準電路的設計。 -
After simulating the model of water hydraulic valves, the velocity distribution, pressure distribution, energy distribution can be obtained and relations between the valve channel and the energy loss, the negative pressure distribution can be analyzed, which offers the theory foundation for designing water hydraulic valves with the high efficiency, low energy loss and low noise
通過對水壓閥模型的cfd穩態和瞬態解析，可以得到水壓閥內流場的速度分佈、壓力分佈及能量分佈，據此定性分析流道結構（速度、壓力、流動的分離與再附壁，旋渦的產生與消失等）與能量損失、負壓分佈等的關系，從而為設計出高效率、低能耗、低噪聲的水壓閥提供理論依據。 -
Because of inner - layer, interlayer and areal heterogeneity of reservoir, after a long period of water flooding, injected water circulates in high permeability channel, sweep volume cannot be enlarged, and injected water volume of per ton increases a lot
摘要由於儲層層內、層間及平面不均衡性，經過長期注水開發，導致注入水沿高滲透條帶循環，很難進一步擴大波及體積，使得噸油注水量大幅度增加。 -
The ten villas of different scale and style and commercial building has 233 high and middle class guest rooms and more than 400 beds. guest rooms are equipped with central air conditioner, automatic smoke sensing fire protection system, satellite closed circuit television, film channel, idd, broadband internet access, small bar, fridge and private safe box. 24 - hour hot water, 24 - hour security ensurance system, 24 hour guest service center, telephone wake up service, telephone message service, laundry service, deputy, car renting and food - to - door services
賓館擁有總統套房豪華套房行政套房國際標準間單人間共計243套， 430餘張床位備有大型宴會廳豪華宴會包房中西餐廳，餐位達1000餘個設有最多可容納600人各種規格的大中小型會議廳會見廳會談廳多功能廳23個，可提供同聲傳譯多媒體演示網路寬帶等服務現代化的國賓劇場共設座位730個，兼備演出會議論壇發布會等服務功能。 -
Preliminary analysis and studies on the application of the river improvement techniques to the downstream serpentine channel of lihe river section in luanhe - tianjin water diversion project are made, and then the improvement plan for the downstream channel is explored through the development and application of both the technique of the concrete mats and the technique of geosynthetics mattress placed for the protection of the high and steep side slopes of the downstream channel of lihe river
摘要針對引灤工程黎河下游多彎曲型河道採用的治理技術措施進行了初步的應用分析探討，並通過對黎河下游高陡邊坡防護中採用的模袋混凝土技術及軟體排技術進行的深入開發應用，探索了黎河下遊河道的治理方案。
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