A blind shaft is this void in the center of the building that's inaccessible to tenants.
盲井是建筑物中心的空隙, 租户无法进入。
99%不为人知的故事
So what you'll see inside is we cut out a series of three voids–so they're basically blind shafts–into the floor plate.
所以你在里面看到的是我们在地板上切出了一系列三个空隙——所以它们基本上是盲井。
英语百科
Blind Shaft 盲井
Blind Shaft (Chinese:盲井; pinyin:Mángjǐng) is a 2003 film about a pair of brutal con artists operating in the illegal coal mines of present-day northern China. The film was written and directed by Li Yang (李杨), and is based on Chinese writer Liu Qingbang's short novel Shen Mu (Sacred Wood).