metallurgical microscopes
金属显微镜

• shroud
• shunt
• shunt conductance
• shunt feedback
• shunt motor
• shunt resistance
• shunt trap
• shunt voltage regulator
• shunt winding
• shutdown signal
• shut-off
• shut-off block
• shutter
• shutter between lens
• shutter blade
• shutter-blade arrester
• shutter efficiency
• shutter gear box
• shutter mechanism
• shutter opening angle
• shutter release button
• shutters
• shutter speed coupling pin
• shutter speed dial
• shutter speed priority automatic exposure camera