Предалхимический период: до III в. Алхимический период: III—XVII вв. Период становления химии как науки: XVII—XVIII вв Период количественных законов: конец XVIII — середина XIX в. Химия во второй половине XIX в. Современный период: с начала XX в.
Ping is a network diagnostic tool used that works by sending an Internet Control Message Protocol (ICMP) Echo Request to a specified interface on the network and waiting for a reply.
What is DNS Records of al-himik.ru
dnscheck is a network diagnostic tool used that works by sending an Internet Control Message Protocol (ICMP) Echo Request to a specified interface on the network and waiting for a reply.
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