Oltoyi Mugul, sistemai kuhiest dar RKhM va Khitoy. Az Shimoli Garb ba Janubi Sharq taqriban 1000 kilometr tul kashidaast, barash 150—300 kilometr. Joi az hama balandash 4362 metr (kuhi Munkh- Khayrkhon-Ula). Az yakchand qatorkuhhoi mutavozi iborat ast, ki onhoro vodihoi chuquri tektoniki burida guzashtaand. Teppadoi kuhho aksar ba pushtakuh monand …

Omoch, olati qadimii juftronist, ki dar Osiyoi Miena, Afgoniston va Tibet istifoda burda meshavad. Omoch az se qism: tir, tana va dasta iborat ast. Tir qismi asosii on buda 2—3 metr darozi, 8—10 santimetr gafsi dorad. Dar tarafi boriki tir 2—5 surokhii khurd hast, ki Omochro bo yug  mepayvandad. Tana …

Olmaato, viloyat dar qismi janubi sharqii Respublikai Sovetii Sotsialistii Qazoqiston. 10 marta 1932 tashkil shudaast. Masodhat 104,7 hazor kilometr2. Aholiash 1765 hazor nafar (bo aholii shahri Olmaato, 1979). Olmaato ba 11 rayoni mamuri taqsim shuda, 4 shahr va 6 posyolkai tipi shahr dorad. Markazash — shahri Olma­ato.             Tabiat. Olmaatoro …

Oltoyho (az soli 1922to 1948 oy­rotho niz menomidand), khalqiyatest, ki dar Viloyati Avtonomii Kuhistoni Oltoyi kishvari Oltoyi RSFSR zindagi mekunad. Dar guzashta nomi umumii guruhi qabilahoi turkizabon, ki dar Kuhistoni Oltoy va qisman dar Oltoyi Kuznesk maskun budand. Shumoraashon 60 hazor nafar (1979). Ba zaboni oltoyi gap mezanand. Az jidati …

Omojgoh, maydoni talimu mashqi tirandozon. Bari Omojgoh ba hisobi miyona taqriban 1-2 kilometr, daroziash to 5—10 kilometr meshavad. Omojgoh durtar aa joyhoi aholinishin, rohhoi shosse, ohan, daryohoi kishtigard, rohhoi havoi va gayra sokhta meshavad.

Olmalik, shahrest dar viloyati Toshkenti Respublikai Sovetii Sotsialistii Uzbekiston.  Dar nishebii shimoli qatorkuhi Qurama va sohili chapi daryoi Ohangaron, 18 kilometr janubtari stansiyai rohi ohan Ohangaron joygir shudaast. Punk­ti okhirini rohi avtomobilgardi Toshkent — Olmaato (68 kilometr) meboshad. Aholiash 101 hazor nafar (1979). Olmaato markazi metallurgiyai rangai Respublikai Sovetii Sotsialistii …

Omsk, shahr, markazi viloyati Omski Respublikai Sovetii Federativii Sotsialisti Rossiya. Dar nazdi andarobi daryohoi Om va Irtish voqe gardidaast. Bandari kaloni daryoi Irtish va uzeli rohi ohan dar magistrali Transsibir. Aeroport dorad. Aholiash 1014 hazor nafar (1979). Az jihati shumorai aholi va masohat Omsk (bad az Novo­sibirsk) shahri duyumi Sibir …

Oloishi radioaktivii bio­sfera, ba organizmhoi zinda va muhiti zisti onho (atmosfera, gid­rosfera, khok) dokhil shudani moddahoi radioaktiviro guyand, ki dar natijai tarkishhoi yadroi, ba muhiti atrof partoftani partovhoi radioaktivi va gayra ba vujud meoyad. Oloishi radioaktiii az tasiri mahsuloti taqsimshavii yadroho (*°Sr, ,87Sg, 144Cl), nuklidhoi radioaktivi (EN, 24Na, 59Ge, “Go), …

Olusi, nigared Ahvali.

Olviya, shahr— davlati atiqai gulomdoriest, ki dar so­hili rosti limani Bug voqe bud; nomi digarash Borisfen (az nomi yunonii daryoi Dnepr). Dimnai Olviya nazdi dehai hozirai Parutinoi rayoni Ochakovi viloyati Nikolaev voqe ast. Avvali asri 6 to milod yunoniyoni shahri Milet asos guzoshtaand. Zaminhoi har du sohili Bug va bisyor …