Tok i go pas

Ol kuler em i wanpela kain samting bilong senisim hat ol i save yusim bilong mekim ol wara i kol. Ol i save yusim wara o win olsem wanpela kolsan bilong rausim hat. I gat ol samting bilong mekim wol i kol, ol man bilong kukim sprei, ol samting bilong mekim jaket, na ol koil kula. Ol i save yusim planti long klinpela wara, wara-air, oil-wara, na oil-air koling divais bilong mekim kol na lukautim ol bikpela lektrik ikwipmen olsem hai-pawa silikon rektifaia, ol induksen furnasis, na ol medium{7}}manis oven.
Ol 'cooler' em ol 'wall-pe, haibrid, na ol samting bilong putim hat. Wok prinsipol, hit transfe kalkulesen, straksel kalkulesen, flow resistens kalkulesen, na ol disain prosedur bilong ol kuler olgeta i soim wantaim planti ol ditel eksampel insait long buk Heat Exchangers.