The concrete slab will be sloped so that liquids are drained into a drain pipe leading to an oil interceptor or a wastewater treatment plant...
混凝土板应倾斜，这样可以让液体排入通向集油器或废水处理厂的排水管。
The concrete slab will be sloped so that liquids are drained into a drain pipe leading to an oil interceptor or a wastewater treatment plant...
混凝土板应倾斜，这样可以让液体排入通向集油器或废水处理厂的排水管。
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