共用系统双工区  GSDA Global System Duplex Area

数控系统双键盘控制器  The double keyboard controller of NC system

双CPU系统  double CPU system

双Packer系统  double packer system

双π系统  double π system

双系统编织机  knitting machine with double mechanism

双系统低地板城轨车  two system low floor tram train

双系统假设  the two core-system hypothesis

双系统接收机  Double-system receiver

双系统模型  Dual-system Model

双系统煞车  dual system brake

双系统设计  dual system design

双系统在线热备方法  double system on-line changeover method

双系统针织机  tandem machine; twin knitter; double feed machine

双系统阻尼吸震器  double systemic vibro-sorption damper

双速—定距桨推进系统  two speed fixed pitch propellerpropelling system

一发双收观测系统  single transmitter and dual receivers field setup

1阶双曲系统  first order hyperbolic system

Bragg声光双稳系统  acousto-optic bistable(AOB) system; acousto-optic bistable AOB system; Bragg acousto-optic bistable system