For the design of fire-extinguishing ammunition, the mathematic relationship between dynamic action area and stand-offdistance was presented.
针对液体灭火弹引战配合设计，研究液态灭火剂动态抛撒面积与炸高的关系。
2
The action of the stress on the wall induced by drop motion is restricted in an area near the symmetric axis, which increases when the initial stand-offdistance increases.
上的应力的作用，逐滴运动诱导的壁附近的对称轴的区域中，从而增加了当初始放置过的距离的增加被限制。
3
In theory, the Army could use such a system to approach targets covertly and drill through concrete, steel, wood, or other materials from a stand-offdistance equal to the length of a football field.