螺纹 (luó wén) — screw thread (helical ridge on a screw, bolt, or pipe); fingerprint whorl (spiral pattern in a fingerprint)
Definition
A compound of 螺 (spiral) + 纹 (pattern). Two main senses: the helical ridge on a screw/bolt (technical), and the spiral whorl pattern in a fingerprint (forensic/biometric).
noun
screw thread (helical ridge on a screw, bolt, or pipe)fingerprint whorl (spiral pattern in a fingerprint)
Measure word · 道
Examples
- 螺纹。Zhè ge luó sī de luó wén fēi cháng biāo zhǔn.The threads on this screw are very standard.
- 螺纹。Tā de zhǐ wén shǔ yú luó wén xíng.His fingerprint is of the whorl type.
- 螺纹。Wǒ men xū yào jiǎn chá zhè ge líng jiàn shàng de luó wén shì fǒu wán zhěng.We need to check whether the threads on this part are intact.
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