第二开口连接到设置通过罩的 第二腔。
The second opening is connecting to a second lumen being disposed through the housing.
主卧室也是这个空间的一部分，并通过宽门和窗户一样的开口连接。
The master bedroom is also one of the zones of this space and is connected by wide gates/doors and window-like openings.
这个开口环是用来连接链条两头的。
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