Payvasthoi organikii elementho, payvasthoi khimiyavie, ki bandi element-karbon dorand; payvasthoe, ki bandi karbon-nitrogen, karbon-oksigen, karbon-sulfur va karbon-galogen dorand, ba in guruh dokhil nameshavand. Istiloqi Payvasthoi organikii elementhoro khimiki soveti A. N. Nesmeyanov ba ilm dokhil namudaast. Nigared Payvasthoi organikii alyu­miniy, Payvasthoi organikii li­tiy, Payvasthoi organikii sili­siy, Payvasthoi organikii surb, Payvasthoi …

Paketi shakhsii ziddikhimiyavi, majmui moddahoe, ki pas az gu­zashtani mahali zahrolud baroi de­zinfeksiya istifoda mebarand. Johoi luchi pusti badan, qismhoi az khimnakidka beruni libos va anjomu asliharo bo mahlul toza mekunand. Paketi shakhsii ziddikhimiyavi gilofest, ki baroi mahlulgiri du khonacha dorad: yak mahlul podzahri on zahrhost, ki kasro asabi va …

Payvasthoi khelati, pay­vasthoi changolshakl, pay­vasthoi dokhili komplek­si, yak sinfi makhsusi payvasthoi kompleksiro guyand, ki dar onho atomi komplekshosilkunanda (markazi) bo du va az on ziyod atomi li­gand (adlend)-hoi yakkhela payvast sh uda as t. Misoli ravshani Payvasthoi khelati asetilasetonati berilliy ba hisob me­ravad. Khs=0.. NS ^ re chsne Dar in …

Pak Chi Von (takhallus YO n a m; 5. 3. 1737, Seul — 10. 12. 1805, hamon jo), navisanda va mutafakkiri Ko­reya, buzurgtarin namoyandai harakati sirkhakikha (raviyae dar afkori jamiyatii okhirhoi asrhoi miyonai Koreya, ki bar ziddi skholastikai konfusiyachigi tavassuti targibi do­nishi haqiqi — sirkhak muboriza meburd). Az oilai ashrofi …

Payvasthoi khimiyavi, moddahoi murakkabero guyand, ki az du yo yakchand elementhoi gunoguni ba tav­ri khimiyai ba kham payvastshuda tarkib yoftaand. Moddahoi basite (nit­rogen Na, oksigen O, vagayra), ki atomhoyashon bayni ham bo bandi kovalenti payvast shudaand, niz az jumlai Payvasthoi khimiyavi meboshand. Payvasthoi khimiyavi khosiyathoi gunoguni khimiyavi va fiziki doshta, …

Pal, yak qitai zamini kisht, ki on jo asosan sabzavot, inchunin galladona (masalan, sholi) mekorand.

Payvasthoi sikli, payvasthoi tasalsul, payvasthoi khimiyavie (asosan organiki), ki molekulaashon az yak yo yakchand halqa (ba istiloh sikl yo yadro) iboratand, ki dar yake 3 yo az in ham ziyod atom dorad. JCH sn,       n,s—sn,          ns khsn n,s—sn, nas^ ^SN, HCV^CH I        sn,       sn Halqahoi 5 va 6- uzvi az …

Paysa, 1) tangai hindii asri 18 va 19; 2) puli maydai fuluzii Hinduston va Pokiston. To guzashtan ba sisgtemai puli dahi Paysa ba ‘/64 rupiya, badi guzashtan (dar Hinduston soli 1957, Pokiston 1961) ba 1/ioo rupiya barobar bud.

Payvastjogho (Tetraodonti- formes), yak qatori mohihdoi ustukhon- dorro guyand, ki ustukhonhoi jogi bolo (mxjo bo hamdigar payvast shudaand (nomashon niz az hamin jost); darozii tanashon az 4 santimetr (khol­laritedho) to 2,5 metr va ziyodtar (moh- mohi) meshavad. Qarib 100 namudi Payvastjogho, ki ba 11 oila muttahid mesha­vand, malum buda, onho dar …

Paydarpaii bargardanda, p a y d a r paii   rekurrenti, paydarpaii a0, a a2, …-ro guyand, ki az rui tanosubi ap+r + s1ap+r-1 + … + Srap = 0 (S Sr — adadhoi doimi) muayyan me­shavand. Az rui in tanosub r-to uzvi avvali paydarpairo donista, uzvhoi boqimondaro hisob kardan mumkin …