“穿过孔洞”例句

单词 穿过孔洞
例句 DEFINITIVE EXAMPLES 权威例句〔trimmer〕Architecture A beam across an opening, such as a hearth, into which the ends of joists can be fitted.【建筑学】 托梁,承接梁:穿过孔洞,如壁炉地面,到插梁末端能被固定的横梁美国传统

 

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