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MUNDARIJA KIRISh...........................................................................................................3ADABIYOTLAR TAHLILI..........................................................................9TEXNOLOGIK QISM..................................................................................15KONSTRUKTIV QISM……………………………………………….......25MEHNAT MUHOFAZASI…………………….........................................40ATROF MUHIT MUHOFAZASI ……………………………………......45IQTISODIY QISM .............................................. ………………….……..53XULOSA…………………………………………………….…………….61FOYDALANILGAN ADABIYOTLAR ………….....…………………….62ILOVALAR..................................................................................................64
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Yer usti transport tizimlari va ularning ekspluatatsiyasi
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