| 双稳电路 bistable circuit |
| 双稳运用 bistable operation |
| 双立人 "彳",one of the Chinese chara... |
| 双端功率发射管 double-ended power transmitt... |
| 双端固定梁 beam with both ends fixed |
| 双端队列 deque |
| 双筒 binocular |
| 双筒井 double-bore well |
| 双筒显微镜 binocular microscope |
| 双筒望远镜 binocular |
| 双筒枪 double barrelled gun |
| 双筒立体显微镜 orthostereoscope |
| 双筒线圈 binocular coil |
| 双管 double-barrelled |
| 双管冷却管 coiled-cooling |
| 双管式摄像机 two-tube camera |
| 双管机枪 machine gun |
| 双管枪 double-barrel |
| 双管直接回水系统 two pipe direct return syste... |
| 双管空气调节系统 dual duct air conditioning s... |
| 双管立式喷雾器 duplex vertical sprayer |
| 双管竖笛 double flageolet |
| 双管采油 dual tubing oil recovery |
| 双管齐下 paint a picture with two bru... |
| 双簧 a two-man act,with one speak... |
