underlay

v.

位于或存在于（某物）之下（ underlie的过去式 ）；构成…的基础（或起因），引起；

n.

衬垫物；

复数：underlays过去式：underlaid过去分词：underlaid现在分词：underlaying第三人称单数：underlays

1. They underlaid the Atlantic with a cable.
   他们在大西洋海底铺设了一条电缆。
2. The slates were underlaid with oilpaper.
   石板瓦下面垫着油纸。
3. His religious concern underlay his life long writings.
   弗莱的宗教关怀贯穿他一生的创作。

1. In fact antimicrobials have been performance proven in many applications for over 50 years, for example in underlay, clothing, bedding, pillows, paints and now carpets.
   事实上，抗菌剂的应用已有50多年，比如被广泛应用于地毯衬垫物、衣物、被褥、枕头、颜料，如今应用于地毯。
2. Besides products , the blue style package with the black underlay brings forth the elevation of the brand .
   产品的外包装色调采用尊贵的蓝色调，黑色衬底，展示出品牌的崇高。
3. The seam is made with an underlay, which is cut to a width double that of the seam allowance.
   这种缝需用垫层。垫层的宽度是缝份的二倍。

A routing underlay for overlay networks
Resource allocation for spectrum underlay in cognitive radio networks
Resource allocation for spectrum underlay in cognitive radio networks
Device-to-device communication as an underlay to LTE-advanced networks
On the Performance of Device-to-Device Underlay Communication with Simple Power Control
On the Performance of Device-to-Device Underlay Communication with Simple Power Control
Energy-aware resource allocation for device-to-device underlay communication
Energy-Efficient Resource Allocation for Device-to-Device Underlay Communication
Joint scheduling and resource allocation for device-to-device underlay communication
Method and apparatus for transporting visualization information on a switched underlay network