电缆护层保护器
protector for cable sheath
sheath protector
混凝土保护层层状剥落
delamination of concrete cover
近距离保护层
short distance protective seam
CO2气体保护全自动焊
fully automatic welding technology with protective
CO 2 shielded welding
安全保护措施
security protection measures
safety precautions
precautionary measure
安全保护等级
security protection class
安全保护电路
security protecting circuit
安全保护服
safety protective coverall
安全保护及联网装置
safe potection and equipment of network
安全保护距离
safety protective distance
安全保护开关
security protection switchl
安全保护控制
safety protection and control
安全保护模型
security protection models