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( excellent ) Preparation of a rainwater tank manhole formed Khan and method
( excellent ) Preparation of a rainwater tank manhole formed Khan and method
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机译：（优秀）形成雨水井沙井的准备和方法
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摘要
When the present invention be above or drop on floor (excellent) when with flow rate of asphalt rainwater flow pave access aperture rainwater flow, when water tank is side, the many spaces being stored in garage and rainwater penetrate deep into ground, to naturally full of rainwater be sent back to the second side sewer rainwater and sewage tank compartment that as conventional sweat contain drain tank and prevent from aside flooding send by way of the drain pipe in upcoming arid flow to outside and manufacturing enterprise in hole in future hole one water shortage is provided, remove barriers
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