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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          虹吸系統原理Principle of siphonic system

          利用屋面與排水出戶管之間的高差所形成的水頭,依靠專用的虹吸式雨水斗,實現氣水分離,配合虹吸專用計算機軟件對排水管不同位置的管道管徑、壓力、流速、流量進行設計分配及控制,從而使管道中真正達到滿管流狀態,當管中的水量是壓力流狀態時,虹吸作用就產生了。在降雨過程中,由于連續不斷的虹吸作用,整個系統得以令人驚奇的速度排除屋頂上的雨水。

          Realize air-water separation by means of waterhead formed by height difference between roof and outlet pipes of drainage and dependent on dedicated siphonic rainwater hoppers, perform design distribution and control of pipeline diameters, pressures, flow velocities and flow rates at different positions of drainage pipes in coordination with computer software dedicated for siphon so as to achieve the state of real full pipe flow in pipelines, when water in pipes is in the state of pressure flow, the siphon action is produced. During rainfall the whole system can drain rainwater on roof at amazing speed thanks to continuous siphon action.

          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