Most of studies overlooked sleeve type ejection gun and the effect of pressure area changes, simultaneously the models of ejection gun were lack of extensity.
以往研究中对多级弹射筒和压力有效作用面的影响重视不足，并且所建模型通用性差。
The practice showed that this solution can effectively solve the lax close problem of ejection slot cover in this type of naval gun.
实践证明，该方案有效地解决了该型舰炮的退壳槽盖关闭不严的问题。
A mini-sized sand-blasting gun of ejection-and absorption type, used to clean and roughen the metallic surfaces for thermal spraying.
一种小型的射吸式喷砂枪，可用作喷涂喷焊前的表面清洁毛化处理。
A mini-sized sand-blasting gun of ejection-and absorption type, used to clean and roughen the metallic surfaces for thermal spraying.
一种小型的射吸式喷砂枪，可用作喷涂喷焊前的表面清洁毛化处理。
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