从57毫米到140毫米 1916年,当第一批坦克出现在欧洲战场上时,其火炮口径只有57毫米。到第二次世界大战时,中型坦克的火炮口径已达85毫米。之后,坦克炮的日径以每10年10～15毫米的速度增长。这种趋势一直保持到了20世纪80年代初,并使各国坦克炮的口径保持在120～125毫米水平。在20世纪80年代,有一种主流思想认为,坦克炮的口径在120毫米左右时就基本达到了极限,不会再有大的 From 57 mm to 140 mm In 1916, when the first tanks appeared on the European battlefield, the artillery caliber was only 57 mm. By World War II, medium tank artillery caliber has reached 85 mm. After that, the tank gun's daily diameter increased by 10-15 mm every 10 years. This trend has been maintained until the early 1980s, and to keep the caliber of tank guns of various countries at the level of 120 to 125 mm. In the 1980s, there was a mainstream thought that the tank gun basically reached the limit when it was about 120 millimeters in diameter. There would be no more big