utm 中文意思是什麼

utm 解釋
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  1. Universal transverse mercator grid utm grid

    統一橫墨卡托方格網
  2. Universal transverse mercator utm

    通用橫軸墨卡托投影
  3. In hydrographic sweeping survey, considering that the surveyed route in design project description is a longer route which is composed of to geodetic coordinates, methods of mercator projection, utm ( universal transverse mercator ) projection and gauss - kruger projection were adopted to eliminate the direction deviation of sweeping survey, and conform to the conventional ay of sweeping survey as well

    摘要在海道掃測工作中,考慮到設計任務書中的掃測航路是由兩點大地坐標組成的較長路線,利用墨卡托投影和utm投影及高斯克呂格投影方式既能消除掃測航向的偏差,又能符合常規掃測方法。
  4. Orientated traffic management of public security, this paper researches urban road traffic information processing technology, accomplishes visible interface envirment of merging graph and text by establishing g1s - utm ( geographical information system for urban traffic management ). the system can make the large traffic information on hand yield well, and give effective analytic method lo traffic management policymaker

    通過在地理信息系統gis環境下建立的城市交通管理地理信息系統gis - utm ( gcographicalinformationsystemforurbantrafficmanagement ) ,實現了道路交通信息圖文一體的可視化界面環境,充分、有效地發揮了現有的大量道路交通信息的作用,為交通管理決策者提供卓有成效的分析手段。
  5. The unsteady. flow theory is used for calculate air flow velocity and one - dimension unsteady convection - diffusion model is used for calculate pollutant concentration ( called unsteady theory model in general, utm ), and a new tunnel control method based on utm and neural network model is developed

    本文首次採用更符合實際情況的隧道氣流?維非恆定流理論和污染物濃度?維非恆定對流擴散模型(統稱非恆定流理論模型)進行隧道通風控制方法的研究,並提出了一套基於非恆定流理論和神經網路模型的新的隧道通風控制方法。
  6. First, the difference between the stm and utm is compared and analyzed. the results show that it can accurately simulate the unsteady flow process of piston wind and the pollutant distribution in tunnel after train left the tunnel, can analyze and calculate the good effect of inertial action of piston wind if using utm

    文中首先分析和比較了傳統隧道通風設計所採用的恆定流理論與非恆定流理論的差別,表明運用非恆定流理論不僅更能準確模擬隧道內活塞風的非恆定流動過程,而且能模擬列車通過隧道過程中隧道內污染物濃度的分佈,同時還能考慮利用隧道內氣流(活塞風)慣性作用促進隧道通風,節約通風能耗。
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