开孔补强
reinforcement of openings in
Opening-reinforcement
opening reinforcement
hole reinforcement
opening compensation
reinforcement method
reinforcement of openings
Reinforcement for openings
reinforced opening
opening reinforcement calculation
opening reinforced
open reinforcement
opening reinforcem ent
Reinforcement
Reinforcement for Opening
pad-reinfoced
配合物纳米结构材料
nano-structural complex material
配电网拓扑结构
Topology of Distribution Network
配电网结构
distribution net work structure
胚乳超微结构
Endosperm ultra-microstructure
胚根细胞超微结构
Ultrastructure of radical cell