The area around the distribution point should be paved with stones or gravel or protected by boards, with a runoff to allow proper drainage.
取水点周围的地区都应该铺上石子或者沙砾或者木板,并且附带一个合理的排水装置。
The area around the distribution point should be paved with stones or gravel or protected by boards, with a runoff to allow proper drainage.
取水点周围的地区都应该铺上石子或者沙砾或者木板,并且附带一个合理的排水装置。
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