The vertical distance from crest to spill plane is the closure of the trap.
从圈闭顶部到溢出面的垂直距离称为圈闭的幅度。
The pillars are attached to the external closure, which allows having the entire floor available except the vertical communication core.
支柱连接到外部结束，这使得整个地板除了垂直的核心筒部分都是一体的。
The pillars are attached to the external closure, which allows having the entire floor available except the vertical communication core.
支柱连接到外部结束，这使得整个地板除了垂直的核心筒部分都是一体的。
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