依据此模型对双方火力控制区的变化进行预测，最后给出了航母战斗群威胁预警仿真系统的实现思路。
By the model, the change of mutual firepower control sections is forecast. Finally it provides a thought of realizing the threat precaution simulating system of carrier fighting group.
依据此模型对双方火力控制区的变化进行预测，最后给出了海上机动目标威胁预警仿真系统的实现思路。
By the model, the change of mutual firepower control sections is forecast; finally it provides a thought of realizing the threat precaution simulating system of maneuver targets on the sea.
（之后）堑壕只作为攻城战战术的一部分而存留下来，直到小口径火器以及加农炮的火力得到提升，迫使敌我双方在美国内战（1861-1865年）中再次利用壕沟作战。
Trenches remained merely a part of siegecraft until the increasing firepower of small arms and cannon compelled both sides to make use of trenches in the American Civil War (1861–65).
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