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blockhole; boutgate; crosshead (ing); cross-hole; doghole | |||
connection | |||
cross head | |||
cross heading; cut-through; dog hole; gate road (采矿区内); jitty | |||
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cross-heading; thirl whirling | |||
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breakthrough | |||
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thirl |
联络巷道 : 6 phrases in 3 subjects |
Explosives and Explosive Ordnance Disposal | 1 |
General | 1 |
Technology | 4 |