X-ray simulating method and system for radiotherapy plan
X-ray system tester
X-ray tomographic apparatus and method using parallel A/D conver
X-ray tube emission current controller
X-ray tube filament current predicting circuit
X-ray-fluorescence measurement of thin film thicknesses
X-wing fly-by-wire vehicle management system
X-Y plotter
X-Y table error mapping apparatus and method
X-Y-theta positioning mechanism
X.times.Y Bit array multiplier/accumulator circuit
XYZ coordinates measuring system
XYZ positioner
Yarn package offtake performance monitoring
Yarn profile analyzer and method
Yarn supply device group
Yarn tension control system
Yaw motion control device
Yaw motion control device
Yawing-momentum detecting apparatus for a vehicle, a detecting m