1.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.

1.以某型号发动机尾部点火为研究对象,对点火序列、点火药量的估、堵的法进行了阐述。

2.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).

2.的目的，该舱壁是三个面：密封着年底汽车，保留热原点火器，并充当井堵塞在案件电机overpressurization （讨论以较早者为准） 。