The utility model relates to a fireworks display tube, comprising a firework tube. The upper end of the firework tube is sealed with a sealing paper.

一种礼花筒，包括有一花筒，该花筒的上端封有一封口纸；

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SeTeral sealing methods for jigs and tables are presented in detail and the gold dredger operation management also discussed in this paper.

对选矿设备跳汰机与摇床的封闭作了详尽的阐述，同时也对采金船的生产管理进行了讨论。

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Examples are presented at the end of this paper to analyze the influence of the partial sealing property of tunnel on stress, displacement and pore pressure.

文末给出了算例，分析了隧洞的半封闭特性对应力、位移和孔隙水压力的影响。

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