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The synthesis of millimetre-sized phase-pure hexagonal diamond, a polymorph of cubic diamond, by compressing highly oriented pyrolytic graphite under high pressures and temperatures is reported, providing new insight into the graphite-to-diamond transformation pathway.
Россиян предупредили о возможном подорожании товаров из-за конфликта на Ближнем Востоке08:42，详情可参考safew官方版本下载
Раскрыты подробности о договорных матчах в российском футболе18:01