Beneath the soil lies a layer of bedrock.

土壤下面有一层基岩。

youdao

When the Nile is in flood, it deposits a layer of mud on the fields.

尼罗河泛滥时，在田野上沉积下一层泥。

《新英汉大辞典》

The archaeologists had to remove a layer or reeds and ropes that covered the burial.

考古学家已经去除了一层覆盖于木乃伊上的芦苇和绳索。

youdao

The lipids will form a bi-layer where the water soluble part of the lipid points out of this layer and the oily part points in.

脂质会形成双层膜,水溶性部分朝向膜层外,而脂溶性的部分朝向双层膜内部

耶鲁公开课 - 生物医学工程探索课程节选

The Intra-Hybrid Blu-ray Disc (IH-BD) incorporates a single BD-ROM layer and a single BD-RE layer so as to enable the user to view, but not overwrite, critical published data while providing the flexibility to include relevant personal data on the same physical disc.

ENGADGET: Blu-ray Discs expand to 128GB under new BDXL spec

The MIM 2220 is a predictably average machine that sports a 15.4-inch WXGA display, a dual-layer DVD burner, WiFi, 256MB of RAM, 40GB HD, and a trio of USB 2.0 ports along with a FireWire connector.

ENGADGET: Medion offers personalized laptop on the cheap

Graphene - a single-layer of carbon atoms - has extraordinary properties which give it immense potential.

BBC: Europe gives 2bn euros to science