free section area 中文意思是什麼

free section area 解釋
自由截面積
  • free : adj (freer; freest)1 自由的,自主的;自立的。 a free action 自由行動。 free competition 自由競...
  • section : n 1 (外科、解剖的)切斷;切割;切開。2 【外科】切片,【金相】磨石。3 (果子的)瓣。4 【數學】截...
  • area : n. 1. 面積;平地;地面。2. 空地;〈英國〉地下室前的空地。3. 地區,地方;〈比喻〉區域;范圍。
  1. With an analysis of soil liquefaction potential for free field of nanjing metro line 1 under 7 degree earthquake, as well as for excavated field, in line with railway engineering anti - earthquake design specification, dynamic triaxial tests and theoretical analysis using efficient stress method, the author comes to the conclusion that, when metro plate is located at layer s and the layer is thick, liquefied area is at metro bottom plate ; in some local section liquefied area is at metro top plate, or arch sides at the top of metro in most places

    摘要採用鐵路工程抗震設計規范、動三軸試驗及有效應力的理論分析相結合的方法,對南京地鐵南北線( 1號線)區間隧道開挖后其地基土在7度地震情況下的土層液化情況進行分析得出:當隧道底板坐落在5層且5層較厚時的液化區出現在隧道襯砌底板處;局部地段液化區出現在隧道頂部及拱腰;大部分地段的液化區出現在隧道頂板上方。
  2. The background diagram database super girl, big long now etc. popular the diagram database has already upgraded completely. welcome the dragon section customer arrives the forum dragon section to announce the free download of area

    公司參加4月26日至28日的濟南展會,到時歡迎科的新老客戶光臨,有禮品相送,購機有優惠!好禮多多,歡迎光臨
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