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Title: TONNAU - PowerPoint PPT Presentation
Description: Amledd yw'r nifer o gylchredau llawn neu ddirgryniadau pob ... Mae pob llinell yn big blaendon cylchol. Diffreithiant Tonnau. Diffreithiant yw gwasgaru allan. ... – PowerPoint PPT presentation
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PPT URL: http://www.ngfl-cymru.org.uk/vtc/ngfl/science/p_james_physics/cym/waves.ppt
