Milanku waxa uu a kooban yahay milme iyo mile. Milme waa walaxda ku milanta milaha. Xadiga milmuhu uu ku milmo milaha ayaa loogu yeeraa milankiisa. Tusaale, cusbadu waa milme ku milanta biyaha oo ah mile.
Milanka ay xubnihiisu halka waji yihiin, walxaha ku jira ee ugu ribanaanta yar waa milmayaal, halka walxaha ugu badan ee ku jirana ay yihiin milayaal. Tusaale hadaan sooqaadano hawada, oksijiin iyo kaabon labo oksaydh waa milmayaal halka naytarojiin ay tahay mile.
Astaamaha milanada:
- Milanku waxa uu ka kooban yahay isku jir isku kaan ah.
- Milanku waxa uu usamaysan yahay hal waji (tusaale, adke, hoore, ama neef).
- Milanku ma uu firdhiyo iftiinka
- Xubnaha uu ka kooban yahay milanku laguma kala saari karo ayada oo la adeegsanayo habka fudud ee miirida.
Tusaale sharaxaatya milanada:
Labo shay oo kasta oo sibuuxda iskugu milmi kara ayaa samayn kara milan, xataa walxo wajiyo kala duwan leh ayaa hadii la isku geeyo samayn kara milan, laakiin waxay ugu dambaynta qaadanayaan ama u jirayaan hal waji. Tusaale, milan adke ah hadaan usooqaadano Baraas (isku dhis bir ah oo ka kooban copper iyo zinc), milan dareere ah waxa usooqaadan karnaa haydarokoloorik asiidh iyo biyo halka milan ka samaysan neefna ay noogu filan tahay hawadu.
| Nooca milanka | Tusaale |
| Neef – Neef | Hawada |
| Neef-Hoore | Kaarboon labo oksaydhka kujira soodhaha (casiirada gaaska leh) |
| Neef- Adke | Neefta haydarojiin ee kujirta birta Palladium |
| Hoore- Hoore | Gaasoliinta |
| Adke- Hoore | Sonkor biyo kujirta |
| Hoore – Adke | Meerkuriga kujira biraha ilkaha lagu buuxiyo |
| Adke –Adke | Isku dhafka biraha |
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