twaddell
1. degree of Twaddell (unit of specific weight)
特沃德尔度
2. Twaddell scale
特沃德尔比重标度
3. Twaddell's hydrometer
特澳德尔(氏)(液体)比重计
4. Twaddell degree
特瓦德尔度
5. Twaddell hydrometer
特瓦德尔比重计