Abbreviation
IM RSC
Innovation management unit of Rosatom state Corporation
INES
international nuclear event scale
InP INRFS

International Project on Innovative Nuclear Reactors and Fuel Cycles
ISD NE

Institute for Safe Development of Nuclear Energy
ITER

International Experimental Thermonuclear Reactor
IZ
internal zone
LPNPP
low-power nuclear power plant
LRW

liquid radioactive waste

LWGR
Light Water Graphite reactor
MCP
main circulation pump
MCR
main connector of the reactor 
MPP
mining and processing plant
MRC
main reactor connector
NEAO ECD
Nuclear energy Agency of the Organization for economic cooperation and development
NFC

nuclear fuel cycle
NI
nuclear installation
NIIC

Nuclear industry information center

NOCS

normal operation control system
NPIC
Nuclear power industry complex 
NPS
nuclear propulsion system