您要查找的是不是：
- 双层OLEDsBilayer OLEDs
- 双层double deck
- 双层的two-double
- 双层巴士double-decker bus
- 双层玻璃pair glass
- "双层" 税收制度two-tier tax system
- 双层中空玻璃double glazing unit
- 双层纸duplex paper
- 他们用双层窗户防尘。They shut out the dust by having double windows.
- 双层组织double weave
- 该天盖壁是双层厚的。The canopy walls are of double thickness.
- 有梯子的双层A bunk bed.
- 那推销员说，如果我们安装双层玻璃窗的话，我们的暖气帐单就会完全不一样了。The salesman said it would make all the difference to our heating bills if we installed double glazing.
- 凹面双层底舱hip tank
- 双层门two storied gate
- 双层袜double-ply hosiery
- 双层炉double decker oven
- 双层货盘double-deck pallet
- 双层公寓duplex
- 双层铆接two ply riveting
