I-1, ukusika ukuchaneka okuphezulu, umatshini wokusika i-laser ukubeka ukuchaneka kwe-0.05 mm, ukuphindaphinda ukuchaneka kokubeka indawo ye-0.03 mm.I-2, umatshini wokusika umthungo onqamlekileyo wobubanzi be-laser, ugxininiso lwe-laser beam kwiindawo ezincinci kakhulu zokukhanya, yenza ugxininiso lokufezekisa ubuninzi bamandla aphezulu, iqondo lezinto eziphathekayo ...
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