photogrammetric trangulation
摄影三角测量

• plasma tube
• plasma wave
• plasmoid
• plasmon
• plaster
• plaster block
• plaster of Paris
• plastic
• plastic aspheric lenes
• plastic-base mirror
• plastic cement
• plastic clad fiber
• plastic deformation
• plastic dye laser
• plastic ferrules
• plastic fibre optics
• plastic film
• plastic filters
• plastic focusing fibre
• plasticien
• plasticity
• plasticization
• plasticizer
• plastic laser
• plastic lens system