You can add attributes using the setAttribute() method, which automatically creates a new ATTRIBUTE node if one does not already exist on the target element with the given name.
可以使用 setAttribute() 方法来添加属性，如果在目标元素中不存在给定名称的属性，该方法将自动创建一个新的 ATTRIBUTE 节点。
To meet the requirement of air defence system countering stealthy target, a method of calculating the RCS of bistatic guidance radars and distance of the launched missile was given.
为满足防空系统抗击隐身目标的需求，提出了一种计算双基地制导雷达rcs和导弹发射距离的方法。
Taking maximum net present value as an optimum target and considering factors in mining, milling and metallurgy, a dynamic optimum method for optimizing cutoff grade of underground orebody is given.
以净现值最大为优化目标，同时考虑采、选、冶三阶段因素，给出了地下开采矿体边界品位动态优化的方法。
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