Trapezidal thread
[机] 梯形螺纹
🧩 词语组成解析
[机] 梯形的
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
Away from the telephones and account books.
远离电话和帐簿。
He who is born a fool is never cured.
生成的傻子总是治不好的。
He sent the journalist two more faxes, but received no reply.
他给记者先后发去两份传真，但对方毫无反应。