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partition block
archit. 隔墙块
tech. 空心砌块间壁; 隔墙砖; 隔墙砌块; 隔墙块 (体); 空心砌块隔断墙; 空心块间壁
partition wall block
tech. 隔墙砌块
partition block: 22 phrases in 2 subjects
Rail transport2
Technology20