名詞 fishplate:

1. metal plate bolted along sides of two rails or beams

fish.plate

n.（名詞）
A metal or wooden plate bolted to the sides of two abutting rails or beams, used especially in the laying of railroad track.
接合板，魚尾板：尤指用在鐵路枕木上的釘在兩個(gè)毗連的欄桿或梁木上的金屬板或木板

來源：
Probably from French fiche [peg] from Old French * see microfiche
可能源自 法語 fiche [栓，釘] 源自 古法語 *參見 microfiche
plate
plate