Ihe nzacha okpukpu abụọ anyị nwere uru atọ: 1. N'ọnụ na-eji ihe nzacha okpukpu abụọ iji gbochie mmetọ. Ihe nzacha ọcha (2/3), nke nwere obere oghere nke 10 μm, na-egbochi mmiri mmiri, sputtering na ikuku sol molecules, na nzacha na-acha anụnụ anụnụ (1/3)), na ver...
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