Thread mandrel1
[机] 螺纹心轴
🧩 词语组成解析
thread
[θrɛd]
n. 线;线索;线状物;螺纹;
vt. 穿成串;将（针、线等）穿过…;用…线缝;给…装入（胶片、狭带、绳子）;
🗣️ 情景例句
Yes, come on.
是的， 过来。
If things were to be done twice all would be wise.
事事倘能做两次，人人都可称明智。
Look! Everyone's in the garden.
瞧！大家都在花园里。