Ọnụ ahịa ụlọ ọrụ kacha ala, nkwalite oge nwere obere oge! Ngwa imecha ruo ụbọchị ikpeazụ nke Septemba.
Diode laser na-ewepụ ntutu isi na-enweghị mgbu (soprano) na-eji laser abụọ pluse laser emebere nke ọma iji jiri nwayọọ nwayọọ mụbaa okpomọkụ nke ntutu isi wee debe ya na ogo 45 maka nkeji ole na ole.