Таджикистан – Энциклопедия на таджикском языке КИТОБАМ

POLIVANOV Evgenty Dmitrievich (12. 3. 1891, Smolensk —25. 1. 1938), zabonshinosi sharqshinos va adabiyotshinosi soveti. Shogirdi I. A. Boduen de Kurggene va L. V. Sherba. Azoi KPSS az soli 1919. Universiteti Peterburg va Akademiyai amalii Sharqro tamom kardaast (1912). Az solt 1917 mudiri shubai mamlakathoi Sharqi Komissariati khalqii korhoi khoriji …

POLIMERIZATSIYa, chunin yak prosessi sintezi polimerhoro guyand, ki zimni on az tasiri mutaqobili molekulahoi monomer (yo monomerho) odatan payvasthoi khurdmolekulai ilovagi tashakkul nameyoband. Polimerizatsiya musalsal va zina ba zina meguzarad. Polimerizatsiyai musalsal bo tashakkul va ishtiroki radikalhoi ozod (Polimerizatsiyai radikali) yo ionho (Polimerizatsiyai i o n i) ba amal meoyad. …

POLYaKHO, lahistoniyon, millat, aholii asosii RKhP. Shumoraashon 39 100 hazor yo qarib 98% tamomi aholii mamlakat (1978). Qarib 10 mln nafar Polyakho dar Amerika, Evropa, inchunin dar SSSR 1151 hazor nafar (1979) zindagi mekunand; ba zaboni polyaki gap mezanand. Aksariyai dindoron katolikand. Khalqi polyak dar davrai bavujudoii davlati Polsha tashakkul …

POLIVINILASETAT, yak nav polimeri sintezi, hosilai polimerizatsiyai vinilametat. Moddai sakhti berang va bezahr; massai molekulaash vobasta ba sharoiti hosil kardani on az 10 000 to 1500 000 meshavad; dar aksari halkunandahoi organiki (ba gayr az ob, benzin va ravganhoi minerali) hal meshavad. Harorati narmshaviash past (26—28°S) buda, nihoyat chaspon ast. …

POLIKRISTALL (az poli… va kristallho), agregatest az anbuhi rezikristallhoe (andozaashon az, ki nisbat ba yakdigar betartib joi giriftaand. Khosiyathoi Polikristall akh rui khosiyati donahoi kristallie, ki Polikristallro tashkil medihand, andozai andaryaki onho, samtgirii kristallografii donaho va sokhti hududii donaho muayyan karda meshavand. Agar donaho betartibona joygir shuda, andozahoyashon az andozai …