Type 190 Ballistics Longitude-Latitude Photographic Plate (BLL, photoplate) is dedicated for night photography of luminous ballistics of conventional or strategical arms.
190弹
经纬照相干版适用于各种常规兵器和尖端武器曳光弹的夜间拍摄[*]。
词: ballistician
Type 190 Ballistics Longitude-Latitude Photographic Plate (BLL, photoplate) is dedicated for night photography of luminous ballistics of conventional or strategical arms.
190弹经纬照相干版适用于各种常规兵器和尖端武器曳光弹的夜间拍摄[*]。
The process beginnng from powder burning to the ejection pistons pushing out the bomb and its moving back was analyzed applying classical interior ballistics and gasdynamics theory.
给出了对某型号挂弹钩的实例
，
果与试验果基本相符。
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