特种弹药 meaning in English

special ammunition

In this paper , measurement principles are discussed in detail for projectile dimension measurement , based on the analysis and classification for the structural dimensions of special projectiles . according to the factory practice , a measuring equipment is setup to measure those dimensions . two high precision laser displacement sensors and motion controller are introduced to construct this automatic digital measurement system for inspection and evaluation of the key dimensions
本文在对某系列特种弹药的弹体结构尺寸分析和归类的基础上,详细阐述了弹体几何尺寸的测量原理,并结合工厂的实际,采用激光位移传感器和计算机自动控制技术,实现了弹体的关键尺寸的数字化测量与评价。