25.100.30 — Сверла, зенковки, развертки ISO 235:1980 ISO 236 1:1976 ISO 236 2:1976 ISO 239:1999 ISO 494:1975 ISO 521:1975 ISO 522:1975 ISO 866:1975 ISO 2238:1972 … Стандарты Международной организации по стандартизации (ИСО)
Olefin metathesis — or transalkylidenation is an organic reaction that entails redistribution of alkylene fragments by the scission of carbon carbon double bonds in olefins (alkenes).[1] Its advantages include the creation of fewer sideproducts and hazardous wastes … Wikipedia
Qatar — State of Qatar دولة قطر Dawlat Qaṭar … Wikipedia
Linux — This article is about operating systems that use the Linux kernel. For the kernel itself, see Linux kernel. For other uses, see Linux (disambiguation). Linux … Wikipedia
Гомельская область — Гомельская вобласць Герб (описание) … Википедия
Glass transition — The liquid glass transition (or glass transition for short) is the reversible transition in amorphous materials (or in amorphous regions within semicrystalline materials) from a hard and relatively brittle state into a molten or rubber like state … Wikipedia