Completar Frases O.D., Writing & Spelling booklet, Unit 3Versión en línea Process Texts por Ioannis Mavropoulos 1 UntiI r ? ? ? ntly , the water whe ? l and the water ? play ? d an important part in industry as a way of ? hanging ? nerg ? into power . A wat ? r wh ? ? I is mad ? of a larg ? wh ? ? l with a numb ? r of ? s arrang ? d on th ? outside of the whe ? l . ? h ? wheel is atta ? h ? d verti ? ally to a horizontal ? . ? h ? wh ? ? l must b ? n ? ar a water suppl ? , so that it ? an us ? the wat ? r to turn it . The wat ? r supply may ? ome from a flowing str ? am , or a miIl pond wh ? r ? th ? str ? am is ? d . ? he pro ? ess starts with the slui ? e gat ? _ this is a barrier whi ? h ? ? ntrols th ? flow of water . First , th ? sIui ? e gat ? is open ? d . ? his ? auses the wat ? r from th ? miII pond to rush down a ? hannel ? aIIed a mill ra ? ? towards the water wh ? el . ? h ? wh ? eI starts to rotat ? be ? aus ? th ? weight of th ? wat ? r push ? s against it and turns it around . This ? r ? at ? s a ? ? whi ? h pow ? rs th ? turbin ? . ? h ? pow ? r is from th ? turbin ? through th ? axl ? to driv ? gears or b ? lts . ? his pow ? r ? an b ? us ? d for a vari ? ty of purposes . In th ? 19th and early 20th ? entury th ? se in ? lud ? d flour , ? ring iron , making ? Ioth and ? rushing wood into to mak ? pap ? r .
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