多亏了细密的火山灰，这个蜘蛛才在被挤压时没有毁掉外骨骼。

Thanks to fine volcanic ash, however, this spider was squashed without breaking up its delicate exoskeleton.

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首先将细密的碳纤维丝纺成纱线，并将纱线织成布料。

Carbon fiber consists of thin strands of carbon woven into a yarn that in turn can be made into cloth.

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如果用了砾石，通常它包含了足够的粘土和细密的材料以帮助路面的稳定。

If gravel is used, it usually contains sufficient clay and fine material to help stabilize the surfacing.

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