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冻结凿井法
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冻结凿井法
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工学
特殊凿井法
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freezing shaft-sinking method
冻结凿井法
在开凿井筒前,将井筒周围含水层用人工制冷方法冻结成封闭的圆筒形冻结壁,以抵抗地压并隔绝地下水与井筒的联系,在冻结壁的保护下进行掘砌作业的特殊凿井法。
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alpha-degree
alpha-D-glucosidase
alpha disintegration
alpha-disintegration
alpha disintegration, alpha-disintegration
alpha disintegration, α-disintegration
alpha diversity
alpha D葡萄糖苷水解酶
alpha-D-葡萄糖苷水解酶
alpha effect
alpha-effect
alpha element
alpha elimination
alpha-elimination
alpha-error
alpha ethylbenzyl alcohol
alpha-ethylbenzyl alcohol
alpha-favorable space
alpha ferrocenyl carboniumion
alpha-ferrocenyl carboniumion
alpha-fetal protein
alpha-finite
alpha finite set
alpha-finite set
alpha-function
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