2013-02-11 CIWSの呼び方 軍事 http://www.youtube.com/watch?v=T4hA8IqSC58 アップロード日: 2008/08/17 The MK 15 Phalanx Close-In Weapons System (CIWS - pronounced "sea-whiz") is a fast-reaction, rapid-fire 20-millimeter gun system that provides US Navy ships with a terminal defense