面水準測量 的英文怎麼說
中文拼音 [miànshuǐzhǔncèliáng]
面水準測量
英文
area leveling- 面 : Ⅰ名詞1 (頭的前部; 臉) face 2 (物體的表面) surface; top 3 (外露的一層或正面) outside; the ri...
- 水 : 名詞1 (由兩個氫原子和一個氧原子結合而成的液體) water 2 (河流) river 3 (指江、河、湖、海、洋...
- 準 : Ⅰ名詞1 (標準) standard; guideline; criterion; norm 2 (目標) aim; target Ⅱ動詞1 (依據; 依照)...
- 測 : 動詞1. (測量) survey; fathom; measure 2. (測度; 推測) conjecture; infer
- 量 : 量動1. (度量) measure 2. (估量) estimate; size up
- 水準 : standard; level
- 測量 : measure; survey; gauge; meter; measurement; measuring; surveying; mensuration; metering; gauging;...
-
Rotating laser is used in earth measurement, mechanical engineering installation and building widely. especially in the upholstery, it can offer a real time standard plane for upholsterer on the walls using rotating laser
激光掃平儀廣泛應用於大地測量、機械工程安裝及建築業等施工過程中,特別是在建築內部的裝修中,旋轉的激光束在墻面上形成光束水平面,實時提供一個共同的施工基準。Because the elevation data we have acquired through gps is too variable to satisfy the mapping accuracy requirement the elevation value is solved by the water lever observation in the hydrology station and datum horizon correction of sounding observation
由於gps的rtk模式測量所獲取的高程精度不能滿足測圖精度要求,因此其高程值是通過測量水深值、結合其統一到基準面的改正數、根據相關水文部門各水位站提供的水位觀測資料綜合計算獲得。Then the periodic properties of geocenter motion in the x, y, z components are summarized. considering the statistical precision of the gps observations, the geometrical distribution of gps stations and their physical stablility, a new method to determine the parameters of geocenter motion is studied and analyzed. in order to have a better understanding of its effect on the height datum origin, the rule of geocenter motion in the horizontal and vertical components are also analyzed and some useful conclusions are drawn
提出了將譜分析與抗差估計相結合的抗差譜分析方法,並用該方法分析了地心運動時間序列的主要周期特性;為合理地確定地心運動參數,詳細研究與分析了一種新的定權方法對求解地心運動參數的作用,該方法充分利用了gps觀測量的統計精度、點位的幾何分佈以及物理穩定性;為了明確地心運動導致的高程基準的變化,分析了地心運動對地面點的水平分量和垂直分量的影響規律。Geoid is the reference datum of spatial data collection, so how to ascertain the geoid, that of all over the world, that of one nation, or that of one zone, is always an nuclear task of surveying science but there is not the quick and automatic solution. the density of the required data of astronomical measurement, gravimeter survey and geodesic survey is not satisfied
大地水準面是空間測量數據外業採集所依據的參考基準面。確定全球、一個國家、一個地區的大地水準面的形狀始終是測繪科學的一項核心內容,一直未能有快速、簡潔、自動的解決方法。需要的天文測量、重力測量、大地測量等數據的密度無法滿足其需要。High - qualified designers and engineers of chaowei are able to provide various high - qualified design services such as ic software program, circuit board, product appearance, products structure, and product package, etc. the factories directly under chaowei have advanced production abilities including mould making, inection moulding, surface spray - painting, silk - screening, shift - screening, smt, welding and assembling, quartz clock core production, and quality check and assurance. chaowei held many design patents and utility model patents, at the same time, national clock and watch quality certification, national technical supervision bureau certification, usa fcc and astm security authentication, canada ic, and euro ce are achieved, the rich experience in oem and odm can ensure high quality products and professional service
超維公司擁有一批高素質的專業設計師和工程師,有能力為國內外客戶提供包括ic軟體編程線路板設計產品外觀設計產品結構設計產品包裝設計等多方面高水準的設計服務超維的直屬工廠則擁有模具製造注塑成型表面噴漆絲印移印smt焊接裝配石英鐘機芯製造品質檢驗測試等先進的生產能力超維公司的產品擁有大量的外觀設計專利和實用新型專利,同時獲得了國家鐘表質量檢驗中心的合格證書國家技術監督局檢驗合格證書美國fcc認證和astm安全認證加拿大ic認證歐盟ce認證。Standard test method for measuring pavement texture drainage using an outflow meter
用出流量計測量鋪面結構排水量的標準試驗方法In general the accuracy of geoidal heights, as given by spirit leveling, much exceeds that of any other system.
一般說來,水準測量測出的大地水準面高程的精度,遠遠超過任何其它方法的精度。Chart datum : the level to which soundings or tide heights are referenced
海圖基準面:測量水深或潮水高度的基礎高度。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。Standard test method for hydrophobic contamination on glass by contact angle measurement
用接觸角測量法測定玻璃表面上疏水污物量的標準試驗方法Through measuring slope forms on the spot, serried sampling, physical and chemical analyzing, and measuring soil erosion from natural and artificial rainfalls, the project researched in the approaches and behaviors of soil erosion affecting contents of soil carbon and nutrient, and the law of soil carbon and nutrient distributing in micro - topographty under influences of soil erosion. in the same time, supported by geographic information system, models of soil carbon and nutrient changing with soil erosion have been built, and spatial processes of soil erosion affecting soil carbon and nutrient have been simulated, and annual and long - term changing of soil carbon and nutrient under impact of soil erosion have been estimated and forecasted, and synchronously, a elementary assessment for different soil erosion management has b een performed by using the models built in the study
本研究以三峽庫區秭歸縣水田壩鄉王家橋小流域四個徑流試驗區二十個標準小區為研究對象,通過坡形實地測量、坡面密集采樣的顆粒分析和養分含量分析以及人工模擬降雨實驗,研究了土壤侵蝕對土壤碳和養分的影響途徑和表現,侵蝕作用影響下土壤碳和養分在微地形空間的分佈規律;同時,在地理信息系統的支持下,建立了侵蝕條件下的土壤碳和養分變化模型,模擬了侵蝕對土壤碳和養分影響的空間過程,預測了侵蝕影響下土壤碳和養分的年變化及多年變化,並通過研究建立的模型對不同侵蝕控制措施進行了初步的效益評價。The optical structure on solenoid collecting magnetic field is designed applying the above principle, which can improve the stability of aoct greatly. according to iec660044 - 8, the performance of aoct is examined roundly applying the standard testing system authenticated by the state authority. the results indicate that the measurement precision of the aoct has already reached 0. 2 class
以iec660044 - 8標準為依據,以通過了國家權威檢測部門鑒定的標準檢測系統華北電力大學博士學位論文摘要為測試平臺,全面地對所研製的自適應光學電流互感器的測量性能進行了檢測,檢測結果證明了自適應光學電流互感器已經達到了0 . 2級的測量水平。Beginning with the analyse of present situation and cause of formation of saline - alkali land, the irrigated area overall water salt trends are analysed, and the irrigated area saline - alkali land and the groundwater level and distribution law of groundwater degree of mineralization are expounded, the trendence of irrigated area saline - alkali land is put forward. then water salt balance model is estanbished according to the relationship of irrigating and drainage. regarding the irrigated area as a balance area, by analysis of mineralization degree of water pumping from the yellow river and drained off water from irrigated area, the change of the draining off water ion is forcasted in water reducing condition
課題研究主要從鹽堿地現狀與成因及灌區總體水鹽動態分析兩方面入手,闡述了灌區鹽堿地、地下水位、地下水礦化度的分佈規律,分析了灌區鹽堿地的成因及變化趨勢;根據灌區灌溉、排水條件與以上各種因素的關系,建立了灌區水鹽均衡模型;把灌區作為一個均衡區,通過對黃河來水礦化度、灌區排水礦化度的分析,預測了在灌溉引水、排水減少時排水離子量的變化;運用灌區水鹽動態模型原理,對灌區現狀( 1998 、 2000年)與規劃水平年總體水鹽平衡進行了計算;總結分析了灌區水鹽動態變化趨勢,計算並提出了排水控制標準。Now the 2d precision of spatial points is very great, but because by usual correlation fitting method we can transfer gps ellipsoidal height into normal height of the local geoid is considered as mathematical curve plane, it is not conform the fact of mountainous districts so the precision of elevation is so small that it is not satisfied with the requirement of leveling
目前,地面點的平面位置確定精度已相當高,但高程精度始終未能達到水準測量的要求,因為將gps大地高轉化為水準正常高的擬合推估方法是將局部大地水準面視為數學曲面,常常與實際情況差異較大(特別在西部山區差異更大) 。Standard test method for open - channel flow measurement of water by velocity - area method
用速度面積法測量明渠水流量的標準試驗方法Standard test method for open - channel flow measurement of water indirectly by slope - area method
使用比降面積法迂迴測量明渠水流流量的標準試驗方法Now, it contracted obviously the disparity with whole country advanced level and raised the testing accuracy and research levels that the research institute whose experiment area is big and the devotion value is high, purchased lately a number of advanced experiment instrument equipments and software, for instance, model machine quickly, tri - coordinate measure machine, laser 3d scanners, multicenter vibration test and analysis system, electronic all - powerful experiment machine, hydraulic presses servo fatigue test machine, festo machine electricity to imitate manufacture system, the software of cad / cam / cae and so on
如今,研究所的實驗面積大、投入價值高,新購置了快速成型機、三坐標測量機、激光三維掃描儀、多通道振動測試與分析系統、電子萬能試驗機、液壓伺服疲勞試驗機、 festo機電模擬生產系統、 cad / cam / cae軟體等一批先進的試驗儀器設備和軟體,明顯縮小了與全國先進水平的差距,提高了試驗的準確性和科研水平。And it have put forward using the change of dielectric contant in the interface medium to survey the altitude between upper oil interface and lower ones. moreover this installment can show the oil quantity and moisture content curve in tank
裝置能夠實現儲罐上界面(氣油界面)和下界面(油水界面)的準確測量,並能顯示出油罐中的儲油量和原油含水率曲線。It is assumed that model parameters calibrated from measured precipitation - runoff data in a specific period, reflect the situation of land surface and the human activity in that period. firstly, daily data of precipitation, pan evaporation, and discharge in 1960 ' s are used to calibrate the parameters of the xin ' anjiang model. then the parameters calibrated are applied to the computation of daily discharge from 1950 ' s through 1990 ' s, in which daily measured data of precipitation and pan evaporation are taken as the input of the xin ' anjiang model
這種徑流過程代表下墊面和人類活動水準不變情況下氣候波動對徑流的影響,然後利用計算的長系列徑流過程與實測徑流過程對照,其差別反映下墊面的自然變化過程是十分緩慢的,可以忽略,因此這種差別主要代表了人類活動的影響,從前後期率定水文模型所得參數的差別及參數所代表的物理意義來分析下墊面及人類活動的變化,從而將氣候波動和人類活動對地表水資源影響程度定量分解出來。Hong kong principal datum : the level to which land surveys in hong kong are referenced
香港主水平基準面:香港測量土地的基礎高度。分享友人