Taking aft-end igniter design for a rocket motor for example,design methods for ignition sequence,amorce quantity estimation and nozzle closure were described respectively.

以某动机尾部火设计为研究对象,对火序列设计、火药量的估算、喷管堵的设计方法进行了阐述。

The purpose of the bulkhead is threefold: to seal the forward end of the motor, to retain the pyrogen igniter, and to act as a blowout plug in case of motor overpressurization (discussed earlier).

的目的，该舱壁是三个方面：密封着年底汽车，保留火器，并充当井喷堵塞在案件电机overpressurization （讨论以较早者为准） 。