A sh. Shorustam ov, R. Y. Abdullayev
P r o l y o t l a r s o n i g a q a r a b k o ' p r i k l a r b ir
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- Bu sahifa navigatsiya:
- T e m i r y o lla r d a , a s o s a n , (70% d a n o r t ig i), m e ta ll k o p r ik lar quriladi. M e ta ll kop rik la r o t a m u s t a h k a m , nisb ata n y engil
- M e ta ll k o p r ik la r n in g a s o s i y k a m c h ilig i m e t a ll n i n g k o p sarflanishi va uni j o r iy saq la sh m urakkabligidir. 5.22-rasm .
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