So the covering layer staple can be natural or synthetic.

因此，覆盖层纤维可自然或人工合成。

youdao

The influence of abr diameter is stronger than the thickness of concrete protective covering layer.

同时钢筋直径对钢筋锈胀力的影响程度要大于混凝土保护层厚度的影响。

youdao

The façade consists of prefabricated wooden elements with an HLK ventilated covering layer of fibre cement slabs.

立面由预制木元素的HLK通风覆盖层纤维水泥石板组成。

youdao

So did a thick, solid layer of sheep dung covering the floor.

VOA: special.2010.08.03

Get through that covering layer and the underlying slivery colour of the aluminium itself will show through the black layer.

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Zhong Yu of Greenpeace told the BBC's Chinese service there was a heavy layer of oil covering the coastline.

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While P2i describes its invisible "hydrophobic layer" as covering the exterior and interior of a product, HzO touts what it calls "WaterBlock" technology, which is applied to the internal circuitry of a device to protect it from moisture.

CNN: Waterproof phones and tablets make a splash