top chord

• 顶弦,上弦杆

top chord的用法和样例：

例句

1. He is replacing the broken chord of his violin.
   他正在更换小提琴上那根断了的弦。
2. The top chords will be designed with a temporary bolted splice at mid-span.
   设计顶部弦杆时，应在跨距中间有一临时螺栓铰接。