Inā makemake ʻoe e ʻike hou aʻe e pili ana i ka sodium-naphthalene etching , e hāʻawi nā ʻatikala ma hope iā ʻoe i ke kōkua. ʻO kēia mau nūhou ke kūlana mākeke hou loa, ke ʻano o ka hoʻomohala ʻana, a i ʻole nā ​​ʻōlelo aʻoaʻo pili o ka ʻoihana etching sodium-naphthalene . nā nūhou hou e pili ana i ka sodium-naphthalene etching . Ke hoʻokuʻu ʻia nei E hahai mai iā mākou / e kelepona mai iā mākou no ka ʻike hou aku i ka sodium-naphthalene etching !