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boresafe

1、膛内保险

... borer 5bC:rE n. 钻孔者, 钻孔器, 钻孔的虫 boresafe 膛内保险[安全] borescope `bR:skEup n. (检查炮膛等用的)管道镜 ...

boresafe fuze膛内保险引信;口径安全信管

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