The antiaircraft guns opened up.
开始击。
The antiaircraft guns opened up.
开始击。
The main factors causing unstability in the automanual-propelled antiaircraft weapon system, that is, factors disturbing the independence of the tracking sight line are studied.
本文分析了影响系统平稳的重要因素——干扰跟踪瞄准线独立性的因素。
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