luminous-spot voltmeter
光点伏特计

• grating monochromator
• grating pair
• grating prism
• grating recombiner
• grating reflector
• grating-ruling engine
• grating satellite
• grating shearing interferometer
• grating space
• grating spectrograph
• grating spectrometer
• grating spectronmeter
• grating spectrum
• grating spectrum satellite
• grating storage target
• grating substrate
• gravimeter
• gravitational field
• gravitational force
• gravitational imaging
• gravitational method
• gravitational red shift
• gravitational waves
• gravity
• gravitycell