| Subject | English | Chinese |
| space | bi-directional | 双向 |
| commun., railw. | bi-directional brake | 双向制动器 |
| mil., air.def. | bi-directional bus | 双向总线 |
| oil | bi-directional counter | 双向计数器 |
| mil., air.def. | bi-directional coupler | 双向耦合器 |
| railw. | bi-directional cylinder | 双向风缸 |
| mil., air.def. | bi-directional diode-thyristor | 双向二极闸流管 |
| el.mach. | bi-directional fan | 双向通风机 |
| el.mach. | bi-directional fan | 双向风扇 |
| oil | bi-directional folded-type prover system | 双向折叠形标定系统 |
| mil., air.def. | bi-directional horizontal raster scan | 双向水平光栅扫描 |
| mil., air.def. | bi-directional horizontal sector scan | 双向水平扇扫 |
| auto. | bi-directional overrunning clutch | 双向超速离合器用于全轮驱动桥中 |
| oil | bi-directional pig | 双向清管器 |
| oil | bi-directional pipe prover | 双向管式标定装置 |
| mil., air.def. | bi-directional pulse train | 双向脉冲序列 |
| space | bi-directional reflection factor | 双向反射比因子 |
| hydroel.st. | bi-directional relay | 双向继电器 |
| oil | bi-directional slip | 双向卡瓦 |
| auto. | bi-directional tractor | 双向行驶拖拉机 |
| mil., air.def. | bi-directional transducer | 双向换能器 |
| textile | bi-directional transfer | 上下针筒移圈 |
| textile | bi-directional transfer | 前后针床移圈 |
| textile | bi-directional transfer | 双向移圈 |
| commun., railw. | bi-directional transmission | 双向传输 |
| mil., air.def. | bi-directional triode thyristor | 双向三极闸流管 |
| textile | bi-directional ultrafiltering | 双向超滤功能 |
| wind. | bi-directional vane | 双向风标 |
| mil., air.def. | bi-directional vertical raster scan | 双向垂直光栅扫描 |
| mil., air.def. | bi-directional vertical sector scan | 双向垂直扇扫 |
| space | bi-directional wavelet transform | 双向小波变换 |
| IT | single fiber bi-directional | 单纤双向 |
| wind. | three phase variable frequency bi-directional back-to-back four-quadrant PEC | 三相变频双向背靠背四象限 PEC |
