地下层数 英语怎么说?

underground foor

地下层数

number of layers in underground

地下层数:subterranean/underground number of plies/layers

地下层次: subterranean layering
楼层数:
1. number of floor levels
2. number of stories
地下:
1. underground
2. subterranean
3. ug
4. bsurface
5. under ground
6. derground
层数:
1. number of plies
2. number of layers
3. level number
分层数: hierarchy number