| 双向 | shuāng xiàng | bidirectional / two-way / interactive | ![]() |
| 双程 | shuāng chéng | return-trip / two-way / bidirectional / double-pass | ![]() |
| 正反两面 | zhèng fǎn liǎng miàn | two-way / reversible / both sides of the coin | ![]() |
| 互译 | hù yì | two-way translation | ![]() |
| 汉英互译 | Hàn Yīng hù yì | Chinese and English two-way translation | ![]() |
| 双工通信 | shuāng gōng tòng xìn | duplex communication / two-way communication | ![]() |
| 双向时间 | two-way traveltime / two-way transit time / two-way time | ![]() | |
| 双向时间剖面 | two-way time profile / TWT profile | ![]() | |
| 双向移动式收音机 | shuāng xiàng yí dòng shì shōu yīn jī | two-way mobile radio | ![]() |
| 双向无线电通信系统 | shuāng xiàng wú xiàn diàn tòng xìn xì tǒng | two-way system of radio communications | ![]() |
