防误闭锁锁具的应用
Application of Mis-closedown Lock
后鼻孔膜性闭锁
Membranous choanal atresia
膜性闭锁肛
membranous atresia of anus
外耳道骨性闭锁
External auditory meatus atresia
atresia
3U0突变量闭锁
Lock by sudden change of 3U0
7RE2800电压闭锁继电器
7RE2800 voltage blocking relay
PT断线与振荡闭锁
PT broken line and occillation blocking