英文: A simple experiment method for testing the impulse of powder-pulse-booster has presented based on
pendulum principle.
中文: 摘要基于单摆原理，提出了一种简单易行的测量火药脉冲助推器冲量的实验方法，并进行了实验研究。
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英文: A swarm of Jurassic insects and reptiles, allegory of the long terrestrial migration the Pendulum was tracing, aimed at me like angry archons with their long archeopterix-beaks; the planes of Bréguet, Blériot, Esnault, and the helicopter of Dufaux.
中文: 一群侏罗记岩石的昆虫和爬虫，是傅科摆所遵循的漫长地域迁移的的预言，如忿怒的统治者般以其始祖鸟的鸟喙对准了我。
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