以下为句子列表：
英文: In order to open the cover of a concentric canister launcher (CCL) automatically with the jet during its launching, four schemes are put forward, viz. fracturable cover, eccentrically positioned interior and exterior launching tubes, jet guides of assymme
中文: 摘要为实现导弹自力发射时同心发射筒前盖自动向一侧开启，讨论了4种燃气开盖方案：易碎盖方案、内外筒偏心盖方案、半导流锥方案和各向异性材料发射筒盖方案，并用数值方法模拟了各种方案的筒内复杂三维流场。
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英文: This paper analyzes the effective length factor (k) in the eccentrically connected cleats in hollow section connection.
中文: 介绍了在钢桥连接系采用空心截面杆件时,连接系与主梁的连接问题中,偏心连接板有效长度系数的分析和确定。
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