Point line of sight and imaging measurements are possible.
点、视线和成像测量均属可能。
The aim of the three-point line and other auxiliary sight to understand, to master.
对三点一线的瞄准和其他辅助瞄准具能够理解，能够较熟练掌握。
The aim of the three-point line and other auxiliary sight to understand, to master.
对三点一线的瞄准和其他辅助瞄准具能够理解，能够较熟练掌握。
应用推荐