香港猥琐摄影师KK系列自制炮架后入国模安可 感觉不够过瘾捆绑继续各种姿势调教啪啪啪超清珍藏版,护士张开腿让男人桶爽的视频

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          虹吸系統設計步驟Design steps of siphonic system

          1劃分匯水區域,計算各區域的屋面面積2確定暴雨重現期,計算暴雨強度

          Divide watersheds, and calculate roof areas of various watersheds
          Determine return period of rainstorm, and calculate intensity of rainstorm
          3根據屋面面積,暴雨強度,計算雨水流量4布置雨水斗(按照榮成公司設計標準進行合理布置)

          Calculate flow rate of rainwater in accordance with roof area and intensity of rainstorm
          Arrange rainwater hoppers (in reasonable way according to design standards of Rongcheng Company)
          5管道的布置(按照設計院的走向或是按照經驗布置)6繪制系統圖

          Lay out pipelines (in accordance with trend defined by design institute or experiences)
          Draw system diagrams
          7方案審核確認8通過計算機專用軟件進行管徑校核

          Examine and confirm program
          Verify pipe diameters via dedicated computer software
          9系統完成


          Complete system


          香港猥琐摄影师KK系列自制炮架后入国模安可 感觉不够过瘾捆绑继续各种姿势调教啪啪啪超清珍藏版,护士张开腿让男人桶爽的视频