Таджикистан – Энциклопедия на таджикском языке КИТОБАМ

POLShA (Rolska), Lahiston, Respublikai Khalqii Polsha RKhP. Davlati sotsialisti dar Evropai Markazi, dar havzai daryohoi Visla va Odra, bayni bahri Baltpka dar Shimol va kuhhoi Karpat va Sudet dar Janub voqe gardidaast. RKhP dar Garb bo  RDG, dar Janubu Garb va Janub bo Chekhoslovakiya, dar Sharq bo SSSR hamsarhad meboshad. …

POLIGONOMETRIYa (az yunoniro — bisyorkunja va …metriya), usuli muayyan kardani vazi nuqtakhri rui zaminist. Darozii khathoi rosti nuqtahoi vasliya va kunjhoi ufuqii bayni on khathoi rostro chen karda, zamin on shabakai mazbuti geodezi mesozand. Poligonometriyaro ba joi triangulyatsiya dar zonahoi beshazor va mahalhoi aholinishin istifoda mebarand.

POLIAKRILATHO, polimerhoi efirhoi murakkabi kislotai akrilat yo metakrilat. Moddahoi V-ashop radikali metil, etil, butil va siklogeksil ahamiyati kaloni tekhniki paydo kardaand. Chunin Poliakrilatho polimerhoi shaffofi termoplastikii bezahr meboshand; dar halkunandahoi organiki khub hal va az tasiri ravganho tez vayron meshavand. Poliakrilathoro az polimerizatsiyai efirhoi kislotahoi akrilat va metakrilat hosil menamoyand. …

POLIGRAFIYa (az poli… va …grafiya), yak sohai tekhnika, majmui vo sitahoi tekhnikist baroi bardoshtani nuskhahoi eiyod az matnho va tasviroti grafiki. Mafhumi Poligrafiya sohai sanoat — sanoati poligrafiro nie ifoda mekunad. Poligrafiya (sanoati poligrafi) bazai moddiyu tekhnikii korhoi nashriya meboshad. Poligrafiya rohi duru daroe va murakkabi taraqqiyotro tay kardaast. Dar …

POLIAMIDHO, polimerhoi siptezie, ki dar molekulaashon guruhhoi amidii — SO — NN — dorand. Binobar in vobasta ba tabiati radikal Poliamidho alifati yo aromati meshavand. Poliamidhoro dar sanoat asosan az polimerizatsiyai laktamho va polikondensatsiyai kislotahoi  aminokarbonat va dikarbonat, inchunin efirhoi onho hosil mekunand. Aksari Poliamidho moddahoi sakhti shokhnamud yo shishamonandi …