您要查找的是不是：
- A1-Cr二元渗层Al - Cr binary layers
- 层layer
- Ni-Cr二元合金Ni-Cr binary alloy
- Al-Ti二元渗层Al-Ti binary layers
- 渗to seep
- 多层multilayer
- 单层monolayer
- 渗流seepage
- 三层three-layer
- 渗碳carburization
- 第一层first floor
- 内层lining
- 薄层folium
- 垫层cushion coat
- 层数number of plies
- 层高height between floors
- 层压lamination
- 层板plywood
- 层的stratal
- 两层two-layer
