In order to improve working reliability, increase grain mass, and achieve ignition and stage separation at the same time, a successful method is to apply an external igniter to solid rocket motor.

为了提高固体发动机工作可靠性，增加装药质量，同时实现二级点火和级间分离，应用体外点火器是一种成功的方法。

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However, he points out that this time, manufacturing companies and workers are seeking short-term working and pay freeze agreements in order to retain skilled workers, in contrast to the mass layoffs in the 1980s.

BBC: A tale of three recessions