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relief hole
释义
relief hole
Encyclopedia
工学
掘进爆破
释
relief hole
辅助眼
位于井巷掘进爆破掏槽眼与周边孔之间的炮眼。又称崩落眼。主要是破碎岩石,确保出碴量,以及为周边眼创造均匀的抵抗层。
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Hang Daopo
hang dyeing
Hang E
Hangenberg event
hanger
hanger-on of an acristocrat in ancient China
hanger tube
hangfire
Hanggao
Hanggin Houqi
Hanggin Qi
hang gliding
Hanghe Xian
Hang Huai
hanging a live dragon
hanging bridge for inclined shaft
Hanging Clouds
Hanging-coffin Burials of the Bo People
Hanging garden of Babylon
Hanging Gardens
hanging glacier
hanging groove
hanging kiln
hanging level
hanging multilayer shaking table
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