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многоканальный порох stresses
Gruzovik, ballist.	multi-perforated propellant
Gruzovik, expl.	multi-perforated grain powder
mil.	multitubular powder
mil., artil.	multitube propellant
nano	multi-channel powder; multi-hole powder; multitube powder; perforated powder
tech.	multiperforated powder
weap.	multitubular propellant (ABelonogov); perforated gunpowder (ABelonogov)

многоканальный порох: 2 phrases in 2 subjects

Military	1
Technology	1