A flexible pavement has a wearing surface which is often only 5 cm thick.
柔性路面的磨耗层往往只厚5厘米。
It should pay attention to the pressure of the contact surface about the flexible material.
伸缩性大的材料，注意接触面的压着力。
It can be more flexible because it doesn't require a work surface.
它也更为灵活，因为它不需要工作面板。
It can be more flexible because it doesn't require a work surface.
它也更为灵活，因为它不需要工作面板。
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