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凿井井架
释义
凿井井架
Encyclopedia
工学
凿井设施
释
sinking headframe
凿井井架
凿井时,用于支承提升天轮、悬吊天轮和架设卸渣设施等的结构物。又称掘进井架。
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field of definition
field of definition for variety
field of directions
field of events
field of extremals
field of finite type
field of force
field of formal Laurent series
field of fractions
field of frames
field of functions
field of geometric objects
field of image
field of interpretation
field of line elements
field of lines
field of moduli
field of moments
field of natural coframes
field of natural frames
field of orthonormal coframes
field of orthonormal frames
field of p-adic numbers
field of points
field of prominences
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更新时间:2026/5/22 16:54:53