特约记者;通讯员的英文怎么说

特约记者;通讯员的英文：
stringer

During fabrication slots for the stringers flanges were flame cut into box girders
制造时，为安装纵梁翼缘，在箱型梁中用焰割法开槽口。

The initial retrofit consisted of removing the gaps between the stringer flange and floor beam by providing shims.
最初的修复工作是通过垫片来消除纵梁翼缘和横梁之间的间隙。