reflection thickness ga[u]ge
反射厚度计

• hander
• hand gonimeter
• hand-held binocular
• hand-held color image scanners
• hand-held laser bar code scanners
• handing
• hand knob
• handler
• hand lever
• hand mapping camera
• hand operation
• hand rest
• handshake
• hand shank
• hand surveying camera
• hand viewer
• handwheel
• hanger
• hanging clinometer
• haplopia
• Haploscope
• Harconurt pentane lamp
• Harcourt photometer
• hard alloy
• hard coat