board and pillar造句

"board and pillar"是什么意思

造句与例句手机版

Application of pedrail - walking type hydraulic supports in board and pillar mining method
房柱式开采中履带行走式液压支架的应用
It's difficult to see board and pillar in a sentence. 用board and pillar造句挺难的

相邻词汇

用"board and card games"造句, 用"board and care"造句, 用"board and care facility"造句, 用"board and lodging"造句, 用"board and lodging expenses"造句, 用"board and room"造句, 用"board around"造句, 用"board at"造句, 用"board backed laminated plastic"造句,

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