1.
one thickness of cotton wool and two thicknesses of felt
一层棉絮及两层毛毡.
2.
having a thickness made up of two layers or strands.
有两层或两股厚度的。
3.
Two or more layers of fabric are combined by pushing barbed needles through them.
用钩针将两层或两层以上的织物缝合。
4.
Two cell layers( diploblastic) separated by a gelatinous mesoglea.
两层细胞(胚层)中间是凝胶状的中胶层。
5.
The five storey building has three floors of offices and two floors of apartments.
这幢楼共有五层，三层办公，两层民用。
6.
He lives in a house of two storeys.
他住的是两层楼的房子。
7.
She lives two floors up.
她住在再往上两层。
8.
two tier car carriage
装运两层汽车的车辆
9.
double taper bit
两层镶嵌刃取心钻头
10.
He applies two coats of paint to the table.
他在桌子上涂了两层漆?
11.
This two-story building is a classroom building.
这栋两层小楼是教学楼。
12.
The head distribution is different in the two layers.
两层中的水头分布不同。
13.
but I prefer a two-story home.
但我喜欢两层楼的房子。
14.
This pad consists of one thickness of cotton wool and two thicknesses of felt.
这个垫子有一层棉花两层呢毡。
15.
A vein of mineral ore deposited between clearly demarcated layers of rock.
位于层次分明的两层岩石之间的矿脉
16.
Advanced Two Layer Polyethylene Pipeline Protective Coating Technology
先进的两层聚乙烯管线防护涂层技术
17.
No.3 upper tween-deck wings
三舱上二层甲板两侧
18.
a two-tiered system,ie one with two distinct levels
双重系统（有两个层次的）.