Takulandilani ku Sincoheren, wotsogola wopanga komanso wopereka zida zokongola kuyambira 1999. Timanyadira kuti timapereka ntchito zapamwamba kwambiri komanso zogulitsa, ndipo makina athu a laser a pico ndi...
Kusamvetsetsa 1: Laser ili ndi ma radiation, kotero muyenera kuvala zovala zoteteza Anthu ambiri omwe amakonda kukongola ali ndi nkhawa kuti zodzoladzola za laser zitha kunyamula ma radiation, koma mukalowa ...