These young people are nicknamed "sandwich layer" - they cannot afford to buy their own properties, but are not qualified to receive subsidies.

这些年轻人被称为“夹层人”—他们买不起房子，但又不具备接受补助的资格。

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This is the concept of the sandwich layer.

这是夹心层的概念。

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PVC Pipe with foamed sandwich layer is a new Piping material.

芯层发泡PVC管材是一种新型管道材料。

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In each case, the resulting image is focused by a clever arrangement of lenses on to a three-layer sandwich made of special materials.

ECONOMIST: Curtains for celluloid

The first layer of the sandwich is photoelectric.

ECONOMIST: Curtains for celluloid

The device that Dr Kirczenow and Dr Rego had in mind is called a semiconductor heterostructure a semiconductor sandwich made of a thin layer of aluminium gallium arsenide held between two thicker layers of gallium arsenide.

ECONOMIST: Microelectronics