Zeiss micro-hardness tester
蔡司头微硬试验计

• p-n junction rectificatiion
• p-n junction rectifier
• p-n junction semi-conductor laser
• p-n light emitter
• p-n-n transistor
• p-n-p junction
• p-n transition
• Pockels' cell
• Pockels' cell apodizer
• Pockels' device
• Pockels' effect
• Pockels' effect cell
• Pockels' readout optical nidulator
• Pockels' shutter
• pocket
• pocket camera
• pocket compass
• pocket microscope
• pocket sextant
• Pohl interferometer
• Poincare sphere
• point
• point angle
• point brilliance
• point-by-point reproduction of the object