固体装药 meaning in Chinese

solid charge

Existing calculation methods for burning surface do n ' t well agree with the experimental data with complicated grain . in order to eliminate the error , tests data are used to correct the prefigurative result generally , and it is impossible to calculate burning surface of grain with crack . debond and wtith changing burning rate of propellant
目前现有的固体装药燃面算法，在计算复杂装药燃面时仍有较大误差，为消除这种误差往往需要用试车结果给予修正；同时在计算含缺陷装药燃面和处理装药因批次燃速变化时的燃气加质更是束手无策。