twiceadv.两倍;两次
twice rotating baseline两次旋转基线
twice-ploughed fallow复耕休闲地
twice difference method二次差值法
Twice - daily regimen注射方案
Twice planting in a year2茬栽培
Twice as large as before是从前两倍那么多
twice the speed of sound声速的两倍
twice correlation method二次相关
twice-through synthetic二步合成法
twice the quantity amount两倍的数量