上升力计算 Weight of roof 0.2 kPa Sheet Roof 0.5 kPa Tiled Roof P- Uplift 0.95 kpa- N2 Wind region 2.16 kpa-N3 Wind region 2.21 kPa-N4 Wind region Area of Uplift on post (m2) Total Wind Uplift Total No of teks in channel to SHS
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