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维基
百科
空心弹
hollow projectile cartridge
- 我甚至为此得到了一颗空心弹，看看！
I even got a special bullet for the occasion with a hollow point, look! - 本文结合试验研究的成果，建立了新型空心螺栓球节点弹塑性分析的简化力学模型。
Combined with experimental results, a simplified mechanics model for the elastoplastic analyze of the new type of hollow ball bolted joint is built in the paper. - 而事实上焊接空心球节点并非完全刚接，其弹塑性性能必会对结构产生重要影响，应当给予重视。
It is thought that the joints are completely rigid in common while not in fact. Their elastoplasticity must have impact on structure and have to be paid much attention to.
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