Once open, remove the black foam stuck onto the back of the outside-facing vents and put everything back together.

打开以后，把通风孔后面的黑色泡沫阻挡物移除，重新把所有东西组装回去。

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Aiming at the emergency repair to the accidental damage of road, the Experimental Study on the polyurethane foam used for rapidly stabilized back filling aggregate was processed.

以公路意外损毁的抢修为目的，进行了聚氨酯发泡快速稳定路基回填料的试验研究。

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First reassembly step is to push the wipers and foam rings back on to the stanchions.

组装的第一步，是将密封圈和膨胀胶圈装回支腿。

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The rest of the vertical column is made from a material called syntactic foam - a solid made mostly of hollow "microballoons" - giving it enough buoyancy to float back up.

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