double two是双倍的意思。double双的; 两倍的; 两面派的; 双人用的。
相关例句：Can be divided into single, double two, beautifully designed, easy to adjust flexibly, according to the release disc the size of the level of that, color can also be based on demand. 翻译：可分为单面、双面两种，设计美观，调节方便灵活，可根据所放碟盘的大小而定层次的高低，色泽也可以根据需求而定。
延展例句：Application of double two-bench merged stripping and mining systemfor inclined slice The Design of Inclined Hopper .翻译：双并段式倾斜条带采剥法的应用环式瓶盖输送装置的设计。