基本释义:

外掩闸

网络释义

1)swing-out gate,外掩闸

2)outward swinging metal gate,外掩铁闸

3)swing gate,掩闸

4)swing type metal gate,铁掩闸

5)external contracting brake,抱闸，外缩闸

6)self masking epitaxy,自掩蔽外延