four dimensional velocity 中文意思是什麼

four dimensional velocity 解釋
四維速度
  • four : n 1 四人小組;(套在車上的)四匹馬。2 四的記號;(骰子的)四點;(鐘點的)四時;四歲。3 〈pl 〉 ...
  • dimensional : adj. 1. 尺寸的。2. 空間的。3. 【數學】因次的;…次(元)的。
  • velocity : n. 1. 迅速;快速。2. 速度,速率。3. 周轉率。
  1. Based on the analyses of the flow and sediment characteristics and evolution trend of the river bed of the fuling reach in the yangtze river before and after the impoundment of the three gorges reservoir, the water level, velocity variation and influenced range in the fuling reach before and fifty years after the operation of the three gorges reservoir with the construction of the fuling dock and four discharge combinations are calculated by using a two - dimensional flow mathematic model

    摘要在分析長江涪陵段的水沙特性和三峽水庫蓄水前後該河段河床演變趨勢的基礎上,運用二維水流數學模型,分析了4種流量組合情況下在三峽水庫運用前和運用50年,涪陵港區碼頭修建前後的水位、流速變化及其影響范圍。
  2. Examples of the absoluteness include the principle of invariance for velocity of light, the principle of special relativity, the principle of general relativity, eigenlength, eigentime, minkowski four dimensional space - time

    在教學中常常強調其中的」相對」 ,而忽視了相對論中還有「絕對」的一面,如光速不變原理、狹義相對性原理、廣義相對性原理、本徵長度、本徵時間、閔可夫斯基四維時空等都具有絕對性。
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