【纺织；造纸】单链缝纫机

spc (single photon counting)

single-phase AC motor【电】

single point tool【机】;single-point cutting tool【机】

single reasonable check【计】

single-point thread tool

dispersion-shifted dual shape core single-mode fiber

single-stage self-priming centrifugal fresh water pump

single-stage clutch【车辆】