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steam_boilers_fire_tube_ lecture 2010 final

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2- مرجل نوع<br />

O<br />

یتكون ھذا النوع من المراجل من وعائین ویكونان على خط<br />

عمودي وتربط بینھما الانابیب تكوین البخار الصاعدة<br />

وانابیب الماء النازلة وتتخذ شكل الحرف<br />

.(<br />

O )<br />

26

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