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موضوع: تصميم شبكة صرف صحي خطوة بخطوة وبالتفصيل - Sewer Design 18/1/2010, 01:17 SEWER DESIGN Sanitary sewers are designed primarily to carry to a satisfactory point of treatment and ultimate disposal the spent water supply of a community, industrial wastes and unavoidable amounts of …
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