two pln.对讲电话线
twonum.二;两个
two-leg slide双腿滑档
two-wheel hoe双轮手推锄
two compartment二分隔
two way circuit双向电路
two - storyed双层
two-foot stop双脚停
two pole switch双极开关
two port system二端口系统
two-way cross二品种杂交, 二元杂交, 二品种杂种, 二元杂种
two-way clamp双向箝位