第一部分美国的计划研制新武器必须从分析目标的性质入手,武器的发展应能适应目标的变化。美国空军军械处在研制中所做的大部分努力都针对三种目标,即:点目标、面目标和机埸目标。点目标如桥梁和掩体;面目标的典型例子是车队;机埸则是最难对付的目标,它不仅具有前两种目标难以攻击的特点,而且它自身还有一些难以被攻击的因素。 The first part of the United States plans to develop new weapons must start from the analysis of the nature of the target, the development of weapons should be able to adapt to changes in the target. Most of the efforts made by the U.S. Air Force ordnance department in its development are aimed at three objectives, namely: point target, surface target and target. Point targets such as bridges and bunkers; a typical example of a surface target is a convoy; a mechanic is the most difficult target to deal with. It not only has characteristics that are hard to attack with the first two targets but also has some elements that are hard to attack.