1. Ndeapi marudzi emidziyo yelenzi iripo?Zvigadzirwa zvechisikigo: dombo rekristaro, kuomarara kwepamusoro, kusiri nyore kugaya, kunogona kutumira ultraviolet mwaranzi, uye ine birefringence.Artificial zvinhu: zvinosanganisira inorganic girazi, organic girazi uye optical resin.Inorganic girazi: Inonyungudutswa kubva kune silica, calciu ...
Verenga zvimwe