-
769.
Photovoltaic effect
Subjects
Photoelectricity
-
770.
Photovoltaic power generation
Subjects
Direct energy conversionSolar energyPhotovoltaic effect
-
771.
Photovoltaic power systems
Subjects
Solar power plants
-
772.
Physical instruments
Subjects
Scientific apparatus and instruments
-
773.
Piezoelectricity
Subjects
CrystallographyElectricity
-
774.
Pilot guides
Subjects
NavigationPilotage
-
775.
Pilotage
Subjects
Maritime contractsHarbors
-
776.
Pipe
Subjects
Hydraulic structuresTransportation
-
777.
Pistols
Subjects
WeaponsFirearms
-
778.
Plant biotechnology
Subjects
Agricultural biotechnology
-
779.
Plastics industry
Subjects
Chemical industry
-
780.
Plates (Engineering)
Subjects
Structural analysis (Engineering)
-
781.
Plating
Subjects
-
782.
Plows
Subjects
Agricultural instrumentsAgricultural machinery
-
783.
Plumbing
Subjects
Environmental engineering (Buildings)
-
784.
Pneumatic control
Subjects
Automatic control
-
785.
Pneumatic machinery
Subjects
Compressed airPneumatics
-
786.
Polikarpov aircraft
Subjects
Fighter planes
-
787.
Polil (Trademark)
Subjects
Trademarks
-
788.
Pollution
Subjects
Effect of human beings on naturePublic health
-
789.
Popular (Trademark)
Subjects
Trademarks
-
790.
Portable computers
Subjects
Mobile computingMicrocomputers
-
791.
Postharvest technology
Subjects
-
792.
Powder metallurgy
Subjects
Last updated dated: 17/11/2024