单词	bonded two-la yer slab
释义	bonded two-la yer slab 结合式双层板
随便看	environment degeneration environment degradation environment democracy environment density environment dependent variable environment deposit environment deprivation environment description environment description on statement environment descriptions environment description statement environment design environment design of community environment design of residence area Environment Designs environment detect instrument environment detection environment deterioration environment determination program environment development environment-development environment diatheses environment diffusion environment diseconomy Environment disinfection