metallographic polishing machine
全相抛光机

• photo smoke detectors
• photosource
• photosphere
• photospot
• photostability
• photostable
• photostar
• photosterograph
• photostimulaton
• photostudio
• photosurface
• photosurface spectral response
• photoswitch
• photo switches, photo sensors
• photo-synchronous pick-up
• photosynthesis
• photo-synthetic orgainism
• photo-tape
• phototaxis
• phototelegram
• phototelegraph
• phototelegraphy
• phototelephone
• phototelephony
• phototelescope