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| 边孔 | |||
| 边孔隧道或平巷炮孔组的侧边孔,它决定着硐口的宽度。参见 rib hole；side hole；end hole | |||
| 爆破侧钻孔; 周边眼; 旁孔; 侧孔; 边缘炮眼; 边眼; 爆破的侧壁炮眼 | |||
| English thesaurus | |||
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| rib hole; end hole | |||
| side hole: 12 phrases in 8 subjects |
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