本文给出了底部点火装药结构两相流内弹道理论模型和计算步骤，并编制程序对两种火炮进行了数值分析。
In this paper, a two-phase flow interior ballistic model for the charge configuration with base ignition bag for two sorts of guns are presented together with computational procedures.
进行普通底部电点火、中心传火管点火和激光多点点火的实验工作。
The experiments of base ignition, center-core ignition and multi-point laser ignition are carried out.
传统的捕鼠方法是在一个粘土罐里点火，然后通过底部的一个小孔将烟吹到地下老鼠生活的空间里。
The traditional way they catch rats is to light a fire in a clay pot. They blow air through a small hole in the bottom to send smoke into the underground spaces where rats live.
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