1) blast hole
炮眼;风洞
2) Gun tunnel
炮风洞
1.
In the paper the theories, the characters and the advantages of this kind of tunnels are explicated and the comparisons with other intermittent tunnels such as shock tunnel, gun tunnel and Ludwieg tube are carried out.
阐述了忽略活塞质量时等熵轻质活塞风洞的工作机理及其特征,并与激波风洞、炮风洞和罗德维奇风洞等暂冲式风洞进行了比较,从而为不同情况下选择不同类型的风洞提供了 依据。
3) gun wind tunnel experiment
炮风洞实验
5) porthole;embrasure
枪眼; 炮眼
补充资料：炮眼
1.掩蔽工事的火炮射击口。 2.爆破前在岩石上凿的孔，用来装炸药。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条