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Ilm

Nasturan

Nasturan (az yun. nastos —zichshuda va lotini uranium — uran), mi­neral, yak navi uraninit.

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Nasledovit

Nasledovit, mineral, tarkibi khimiyaviash: (Pb, Mn, Mg, Zn). Ba sharafi B. N. Nasledov nomida shudaast. Nasledovit dar tarqishhoi bayni jinshoi granodiorit-porfir dar shakli agregathoi lundai ooliti yoft shudaast. Nasledovitro nakhustii bor M. R. Enikeev dar nazdikii Oltintopgai yoftaast. Rangash safed. Sakhtiash taqribai 2, zichiash 3069 kg /as3. Nasledovit dar natijai …

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Nasos

Nasos (lot. Antlia), burjest dar Nyamkurai shimolii osmon. Qadri sitoravii zohirii munirtarin sitoraash az 4,0 ziyod ast. Sharoiti musoidi mushohida mohi fevral. Az mavzehoi markazi va janubi SSSR mushohida kardan mumkin ast.

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Nasr Ibni Ahmad

Nasr Ibni Ahmad Ibni Asadi Somoni (Nasri I, soli tavallud nomalum — vafot 893), saromadi sulolai Somoniyon, hokimi Samarqand (864—892). U dar sohili daryoi Nodir dar shahri Haylam tavallud yoftaast. Khalqi Bukhoro bar ziddi zulmi Khu­sayn ibni Tohir (barodari hokimi Khuroson — Muhammad ibni Tohir), ki soli 874 ba Bukhoro …

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Narkoz

1-38

Narkoz (az yun. narkosis — behis shudan, karakhtshavi), khobi bo rohi suni barangekhtaest, ki kas purra yo qisman behush gashta, dardro his namekunad. Narkozro hangomi jarrohi baroi rafi dard (anesteziya) istifoda mebarand. Narkoz ingalyatsioni, gayriingalyatsioni va omekhta meshavad. Khangomi  Narkozi ingalyatsioni efir, khloroform, khloretil, oksidi nitrogon (I), tsiklopropan, ftorotan va …

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Nano

1-12

Nano (az yun. nanos — reza, khurd), qismi avvali kalimahoi murakkabro guyand, ki baroi ifoda kardani hissai milliardyakii vohidi asosi istifoda meshavad. Ishoraash n, masalan, 1 nm (nanometr) = 10-9 m.

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Namlai pilk

2-253

Namlai pilk murchadavaki  pilk, donachaest surkhi suzon, ki dar pilki chashm padid meoyad va andak varam karda pahn meshavad.

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Namla

2-252

Namla (ar. — murcha), donahoi jushishmonande, ki dar badan zohir megardand. On bo khorish va suzishe, ki guyo murcha gazida istoda boshad, his meshavad. Mavzei on andak varam mekunad va pusti atrofro siroyat menamoyad; bemor guyo roh gashtani murcharo his mekunad.

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Nazzomi meteori

2-184

Nazzomi meteori (az ar.— tezchashm, durbin, daqiqbin va meteorho) yak sistemai agregathoi fotografist, baroi mushohidai meteor (shihob)-ho. Har yak agregati Nazzomi meteori odatan az 4—6 kamerai fotografii farokhzoviya iborat ast. Kamerahoro tavre joy medihand, ki onho yakhoya qismi haddalimkon kalontarini osmonro dar bar girifta tavonand. Macalan, Nazzomi meteorii Instituti astrofizika …

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Nazira

2-185

Nazira (ar. muannasi misl, monaid), yak shakli ananavii sher, ki dar adabiyothoi Sharqi Nazdik va Miyona intishor yofta bud. Nazira sarfi nazar az mavridi gufta shudanash hamesha yak nav quvvaozmoi, imtihonu sanjishi mahorat va musobiqai adabi meboshad. Adibi naziraguy aksar baroi nazi rasaroi asarhoi behtarin va mashhurtarini adiboni buzurgi guzashta …

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