The critical breakthroughs have been taking place in the structural designs, internal and external ballistics, and mathematical models, and it is now in dynamic firing test phase.
结构设计、内外弹道、数学模拟都取得了重大突破，已达动态发射试验阶段。
Exploration is made of computation correcting method for parameter effects of free recoil on the ballistics when the wheels of recoil trailer are moving in test.
研究了有关自由后坐试验车车轮转动对弹道自由后坐参数影响的修正计算方法，给出了修正计算方法及计算结果。
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