abbr.可控硅整流器(Silicon Controlled Rectifier);半导体控制整流器(Semiconductor Control Rectifier);通讯兵团无线电与雷达装置设备(Signal Corps Radio and Radar);侦察车侦察(Scout Car Reconnaissance)
In Equinox's case, it's provided by osgi.services, but in Felix, the interface is exported by the SCR (service Component Registry, aka DS) bundle itself.