drill guide layer 钻孔导引层
wave guide layer 波导层
Layer and Guide Layer 图层和引导层
wave-guide multi-layer cd 波导多层光盘
The surface layer is arranged on the upper surface of the sweat guide layer and is made from polypropylene.
导汗层的上表面设有面层，面层的材料为丙纶。
Note that no characteristics are exclusive in the particular layer but serve as a guide for specific topics that this article addresses.
注意，没有特征在特定层中是独有的，而是充当本文探讨的特定主题的指导。
They stacked rocks with center holes (tube or doughnut shaped) from the surface to the deep stone layer as a guide for their drills (similar to today's guide tubes).
管状或中空管状的中心孔从地表到深石岩石层放满石头，以作为铁转的探头，作用类似今天的导管。
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