???????? ??? ?????????????????????????????????????????????????????? 3M
enhanced-combat-helmet-
???????????
– 35,000 ????????????????
– 2,500 ??????????????????
– 77,000 ??????????????????????????
?????????????????????????????????????????????????????????????????? ??????????????????????????????????????????? 35%
???????????????????????????????????????????????????????????????????
??????? Popular Science ?????????????????? Ceradyne Enhanced Combat ????????? 3M
??????? 1 ?? 100 ?????????????????????????????? 2013
?????
http://www.spacedaily.com/reports/Army_Navy_getting_tougher_combat_helmets_999.html
??????????????????? NATO military fanclub.
