disc brake shaft locking device
logical locking and electrical locking
eddy current shaft-displacement and shaft-vibration monitor
half built up crank shaft [= semi-built-up crank shaft
longitude shaft and latitude shaft
vertical shaft fulcrum shaft sleeve
[endoscopic]locking knob
2PL two-phase locking protocol
A new phase locking method with zero crossing
absolute frequency locking
active-active transient mode-locking technology
active-passive mode locking