例句與造句

1. The bottom layer is a clear polyester backing sheet; the top layer is a knife and peeled away from the bottom layer.
2. The device was created by embedding sensors in a thin film and then placing the film on a polyester backing similar to those found on temporary tattoos.
3. A manufacturer's label may say, for example, 67 % polyester, 33 % polyurethane for a fabric that contains no PVC; or 80 % polyvinyl chloride, 20 % polyurethane with mention of the polyester backing omitted.
4. It's difficult to find polyester backing in a sentence. 用polyester backing造句挺難的