苏联人对武器研制工作的保密严格,致使NSV12.7毫米大口径机枪在70年代中期正式列装几年后;西方才得到有关它的消息,我国80年代初才有所闻,但还只知道在装甲车上换了新12.7毫米机枪。NSV12.7毫米大口径机枪较苏原12.7有很大的进步,特别是它的重量大大减轻,用途也将远远超出被换装的,因此它受 The secrecy of the Soviet Union in the development of weapons was so severe that the NSV’s 12.7-mm large-caliber machine gun was officially installed in the mid-1970s only a few years later. Only in the early 1980s did the West get the news, but it only knew A new 12.7 mm machine gun was added to the armored car. NSV12.7 mm large-caliber machine gun than the original 12.7 Su substantial progress has been made, in particular, its weight is greatly reduced, the use will be far beyond the bespoke, so it is