According to the size and height of the falling rock block, the thickness of the circular tube can be determined, which can provide the foundation of designing the escape passage system.

同时，根据岩块大小和下落高度，可以通过计算凹陷变形而确定圆管厚度，为逃生管道的安全设计提供依据。

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And remember, in the passage that I read about Inverarity's escape, what she left with, as her final understanding.

记住，在我读过的关于Inverarity的逃脱的部分中，她留下的是她的最终思考。

耶鲁公开课 - 1945年后的美国小说课程节选

An employee at one of the churches told AFP news agency that people inside the church had fought back with sticks, but that the attacker had tried to escape through an underground passage.

BBC: NEWS | Middle East | Knife attacks on Egypt churches

Filter cloth: synthetic textile with openings for water to escape, but which prevents passage of soil particles.

UNESCO: L O S S A R Y