two dos“两个务必”
twonum.二;两个
twopenny-halfpennyadj.二便士半的;微不足道的
two phase flow field两相流
two-spectra binary双谱分光双星
two-position relay二位置继电器
two-way sulky plow双向乘式犁
Two-way HFC System
two-stage estimate两步估计
two bearing computer双方位计算机
two-stage aeration两段曝气
two-pass condenser双道冷凝器,双路冷凝器,双程冷凝器