height datum 中文意思是什麼
height datum
解釋
高程基準-
Tidal height datum plane of the station
測站潮高基準面 -
Height datum transference within long distance across sea
長距離跨海高程基準傳遞方法的研究 -
Finally, the rule of geocenter motion is studied. and its effects on the height datum are also discussed in the dissertation
論文最後研究了地球質心的運動變化規律及其對高程基準的影響的有關問題。 -
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。 -
Tide height is in metre above the chart datum which is 0. 146 m below the hong kong principal datum
潮水高度為海圖基準面以上高度，以米為單位。香港的海圖基準面在主水平基準面下0 . 146米。 -
Tide height is in metre ( m ) above the chart datum which is 0. 146 m below the hong kong principal datum
潮水高度為海圖基準面以上高度，以米為單位。香港的海圖基準面在主水平基準面下0 . 146米。 -
Although there are many literatures describing ultrasonic detector for traffic flows, none of the same category has referred the techniques applied in the design herein such as multi - sensor construction, automatically establishing datum line regardless of suspension height, digital filtering and multi - lane detection as well as measuring length of motorcade
目前有關超聲波車流檢測器的文獻較多，但本設計中採用的多探頭結構、自動標定超聲波探頭的架設高度、數據濾波以及多車道測量和檢測車隊長度等技術在同類設計中未見使用。 -
Due to the development of gps, which is representative of spatial geodetic measure technology, and the satellite altimeter technology, it is possible to unify the local height datums in different countries ( or regions ) to the world height datum ( whd ). and the unification of height datums has been made in some countries
隨著以gps為代表的空間大地測量技術以及衛星測高技術的飛速發展，使得將各個國家或地區的局部高程基準統一為全球高程基準成為可能，並且在部分國家已經實現，因此將我國高程系統納入全球高程系統不僅具有理論意義，而且具有重要的現實意義。 -
The productions include : 1. the investigation of crackss of masonry structures, the characteristic and the reason on cracks of wall ; 2. the limited element analysis about datum of brick - wall the relation between the maximal stress in wall and the relative sedimentation of foundations, the relation between the cracks form in wall and inner stress, the validity of limited element mode ; 3. the limited element analysis about the relative sedimentation of foundations, the influence of ratio of length and height, foundations rigidity, groundsill rigidity on the inner stress in wall ; 4. the limited element analysis about the influence of temperature on wall cracks and the influence of space between extension cracks, difference in temperature on the inner stress in wall ; 5. the analysis about the cracks rule because of temperature, the contrast between the result and the simulant result ; 6. the study about the influence of cracks of masonry structures because of constriction stress, the experience of dealing with constriction cracks in the domestic and the foreign ; 7. the advice of avoiding cracks because of the asymmetric sedimentation temperature, constringency in design and construction
本研究結合實際工程中的砌塊建築普遍存在的裂縫問題，參照磚墻裂縫調查研究的成果，針對我省的砌塊應用狀況，進行了充分的調研，並查閱大量的文獻資料，總結了砌塊建築墻體裂縫的特點和規律，通過對溫度裂縫、沉降裂縫的有限元分析和經驗公式的對比，深入的探討了墻體開裂的影響因素，結合各地實際工程經驗，在對混凝土砌塊墻體在材料、設計、施工等方面進行系統的理論分析、綜合研究的基礎上，給出開裂的防治方法，促進混凝土砌塊在我省的推廣應用，為相關規范的編制提供理論依據和經驗分析，主要研究成果有： 1砌塊砌體開裂的調查研究，墻體開裂的特點和原因總結； 2有限元分析磚墻實測數據，揭示了墻體內最大主應力和地基相對沉降量的關系及墻體開裂形態與內部應力的聯系，並且驗證了有限元模型的有效性； 3
分享友人