Twinamen.特威内姆twinadj.孪生的；紧密联系的n.双胞胎之一twin-hull flying boat双船身式水上飞机twin - spool turbojet双转子涡喷发动机twin-subset semantics双子集语义Twin-frequency gating双频光栅twin cathode-ray beam双阴极射线束twin-waveguide switch双联波导开关twin focus x-ray tube双焦点X线管twin shaft paddle mixer双轴式桨叶拌和机twin-screw compressor双螺杆压缩机twin-concentric cable双芯同轴电缆