twogridadj.双栅极的
twonum.二;两个
two-sided platform双边平台
two phase fluid flow两相流
two-person company两人公司
two-step treatment两步给药法
two--sided coset双侧陪集
two-year schooling两年制
two successive doors两道门
two level controller双层结构控制器
two-stage gasifier两段炉
two-phonon process双声子过程