coastal front coastal front trapped wave
sloping delta front and basin delta front
Back filling at abutment back of Bridge or culvert
back reaming and back transportation
Back-to-Back
对头拼接
背靠背
背对背的
背靠背结构
背对背
紧接的
背向式计数器
3-layer polyethylene coated pipe
5% aluminum-zinc coated steel
a way of water as solvent and coated material
acetate fiber coated activated carbon
adhesion strength of coated fabric