固体燃料火箭发动机的构造更简单、分量更轻,而且相对更安全。 在固体燃料火箭发动机里,燃料和氧化剂被预先混合成稳定的液态推进剂,然后被塞满火箭发动机的燃料箱里。
Solid-fuel rockets, in which the fuel and oxidiser are pre-mixed into a stable, solid propellant and then packed inside the case of the rocket, are simpler, lighter and relatively safer.
通过多边机构框架参与维和推进自身利益,这是一个有分量的国家——中国如今就是——深谙的国际战略。
Framework through multilateral institutions to participate in and promote their own interests, this is a component of the nation, China today is to understand the international strategy.
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