datum water level 中文意思是什麼
datum water level
解釋
基準水平面-
3. the drop datum of largest water level in researched reaches increases relatively with length increase of dredging channel in definite condition of discharge and sediment and definite dredged sediment quantity or dredged morphology of transversal section
在一定的水沙條件和一定的挖沙量或一定挖河斷面條件下，隨挖河長度增加，研究西安理工大學工程碩士學位論文河段最大水位降落值相對越大。 -
Water level in the tolo harbour was as high as 5. 4 metres above chart datum as compared with the normal high tide of 2. 2
吐露港的潮水高度竟達海圖基準面以上5 . 4米，而正常的漲潮只有2 . 2米。 -
The in - situ testing includes surface deformations, sub - surface movements, earth pressures, pore water pressures, underground water levels, spt, stresses of pipes and pipe - soil contact stresses. in addition, the total jacking forces, deviations in line and level of the pipe line and earth pressures in the earth pressure balance machines ( epbm ) are also recorded. the results of field - testing are analyzed, and the variety of testing datum include earth pressures, pore water pressures and underground water levels during the course of the shield through it are studied
現場測試內容包括地面變形、深層土體變形、土壓力變化、孔隙水壓力變化、地下水位變化、土體標準貫入試驗、管道內力變化、管土接觸應力變化以及頂管施工現場記錄（包括頂力、土壓力、平面偏差、高程偏差等） 。 -
The shake wave appear in the datum of strain and ground deformation, the step change appear in the datum of water temperature and water level, and the ability difference of recording earthquakes is large
應變及地傾斜出現幅度不同的震蕩波，水溫和水位大部分出現明顯階變，且不同的儀器記震能力相差很大。 -
The author emphasized on the research of the process of tidal flat hydrodynamic and the process of total nitrogen, total phosphor dynamical transportation and got the conclusion as follows : ( 1 ) open tidal flat of dong tang chongming yangtze estuary was chosen as research object and two typical section plane was set up in order to measure four seasonal hydrology element and get index datum such as water level, current direction, current speed
得到如下結論： （ 1 ）以長江口崇明東灘敞開型潮灘為研究對象，設置了兩條代表性斷面，實測了四個季節的水文要素，獲得了包含水位、流向、流速等指標數據。 -
But when the dredged length have increased to a certain value, the increment of water level drop datum decreased continuously with length increase of dredging channel. in other word, unit length increment tends to slowly. when dredging channel length is in a certain datum region, the effect of dredging sediment for deposition reduction is better relatively
但是，當長度增加到一定值以後，隨挖河長度的增加，水位跌落值增量不斷減小，即單位長度的增加量逐漸趨緩；當挖河長度取于某一值域內時，挖河的減淤效果才相對較佳。 -
First, the hydrogeological conditions and characteristics are gathered up and the hydrogeological concept model is generalized. next, through collecting completely and analyzing systematically the rainfall, evaporation, surface runoff and observation datum of the groundwater water level, all hydrogeological parameters of this area is defined, then mathematical model of groundwater of dagu river is built
首先概括大沽河地下水庫的水文地質條件與特徵，概化出該區水文地質概念模型，然後通過全面收集和系統分析研究區的降雨、蒸發、地表徑流、灌溉和地下水水位常觀資料，確定該區的各項水文地質參數，進而建立了該區地下水的數值模型。
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