پديده ضربه قوچی در سيستم توزيع آب آتش نشانی

پديده ضربه قوچی در سيستم توزيع آب آتش نشانی

84 Pages · 2014 · 14.09 MB · Persian
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“ Courage doesn't always roar. Sometimes courage is the quiet voice at the end of the day saying, "I will try again tomorrow." ” ― Mary Anne Radmacher
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