According to the laboratory measurements of velocity and water level which were obtained before and after seting up of pile group.

　
英 美
  • 通過(guò)對河道修建高樁碼頭前、后的流速分布及水位試驗分析得出:隨著(zhù)樁群長(cháng)度的增加,同一根垂線(xiàn)上的流速分布趨于均勻。
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan