This paper presents an approximate analytic method for the stiffened torispherical shell with opening under uniform external pressure, that is, the equivalent spherical shell method.
本文提出一种用下开孔加筋形薄壳屈曲的析方法──等价球壳方法。
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Allied scientists came across the plans for the Sun Gun after the war was over, along with other mad-scientist level stuff like saucer-shaped aircraft that took off and landed vertically and giant tanks that were like battleships on land.
盟军科学家在战争结束后发现了太阳枪的计划,以及其他疯狂的科学家级别的东西,比如垂直起降的碟形飞机和像陆地上的战舰一样的巨型坦克。
Around 6: 10 PM, just after finishing up work in the New Mexico National Forest job that he had, Walton was riding in a truck with six of his co-workers when they saw a large saucer-shaped aircraft hovering in the trees.
下午 6 点 10 分左右,沃尔顿刚结束他在新墨西哥国家森林公园的工作,正和他的六名同事坐在一辆卡车上, 时他们看到一架巨大的碟形飞机在树上盘旋。