n.孿生管；雙聯(lián)管

Narcissus Twin tube washing machine Series 水仙雙桶洗衣機(jī)系列

Shock Absorbers: Twin tube gas-pressurized 雙管式瓦斯氣壓避震器

The twin brothers are far apart in character. 那兩個(gè)孿生兄弟的性格相差很遠(yuǎn)。

STUDY ON DYNAMIC CHARACTERISTICS OF A TWIN TUBE MAGNETO-RHEOLOGICAL DAMPER 雙筒磁流變阻尼器動(dòng)力學(xué)特性研究

You must be muddling me up with my twin brother. 你一定是把我看成我的孿生兄弟了。