雙向模型 bidirectional: 雙方向的; 雙向的; 雙向性的,8字型指向的; 雙指向性backward and bidirectional: 反向與雙向的bidirectional algorithm: 雙向算法bidirectional amplification: 雙向放大bidirectional antenna: 雙向天線下載手機(jī)詞典可隨時隨地查詞查翻譯