我们来谈谈极移后建造支架，它们需要被修整并加强，而机械本身是很耐用的。

Lets say the building stands after the pole shift, having been retrofitted and braced, and the machinery itself is pretty durable.

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可挤压的支架和加强杠有时会被聚丙烯泡沫或者成型的塑性塑料替代。

Polypropylene foam or formed thermoplastic sometimes is used in addition to or instead of crushable brackets and a bar.

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由于采高加大使基本顶来压更加强烈，支架的支护强度更要加大。

The increase in mining height makes the weighting of immediate roof become more violently, which requires that the support strength should increase accordingly.

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