Keyphrases
Heat Engine
100%
Search Engine
100%
Third Countries
100%
Sovereign
40%
Zero Emission
30%
Oxidizer
30%
Sovereign State
30%
United Nations
20%
Chemical Energy
20%
Rocket
20%
Microstates
20%
Political Entity
20%
Internal Combustion Engine
20%
Energy Forms
20%
Mechanical Energy
20%
Air-breathing Engine
20%
United States
10%
Citizenship
10%
Electric Motor
10%
India
10%
Potential Energy
10%
Elastic Energy
10%
Independent States
10%
Land Area
10%
Uninhabited Islands
10%
Large Country
10%
China
10%
Sovereignty
10%
Political Divisions
10%
San Marino
10%
General Assembly
10%
Political Characteristics
10%
Vatican City
10%
Small Populations
10%
South Sudan
10%
Indonesia
10%
Geographic Region
10%
Monaco
10%
Hydrocarbons
10%
Atmospheric Oxygen
10%
Electrical Energy
10%
Earth's Atmosphere
10%
Air Currents
10%
Side Reactions
10%
Gaseous Combustion
10%
Rapid Pressurization
10%
Energy Sources
10%
Nuclear Reactions
10%
Fuel Oxygen
10%
Industrial Processes
10%
Exhaust Gas
10%
Air Ambient
10%
Law of Motion
10%
Biological Systems
10%
Jet Engine
10%
Thermodynamic Process
10%
Mechanical Motion
10%
Myosin
10%
Fuel Cell
10%
Molecular Motor
10%
Pure Hydrogen
10%
Compressed Air
10%
Reaction Mass
10%
Piston
10%
Combustion Chamber
10%
Atmospheric Convection
10%
Gasoline
10%
Crankshaft
10%
Combustion Products
10%
Non-chemical
10%
Newton's Third Law
10%
Nuclear Fission
10%
Nuclear Energy
10%
Atmospheric Nitrogen
10%
Hydroelectric Power Generation
10%
Intermediate Energy
10%
Clockwork
10%
Available Energy
10%
Alcohol
10%
Greenhouse Gas
10%
Pneumatic Motor
10%
Natural Processes
10%
Convective Cells
10%
Nuclear Fusion
10%
Fission-fusion
10%
Windup
10%
Rocket Engine
10%
Chemical Engines
10%
Hydrogen Fuel
10%
Submarine
10%
Fuel Components
10%
Earth's Gravitational Field
10%
Atmospheric Gases
10%
Heat Energy
10%
Combustion
10%
Pure Oxygen
10%
Environmental Heat
10%
Water Vapor
10%
Additional Fuel
10%
Electric Potential Energy
10%
Large State
10%
Country Names
10%
NOx Emission
10%
INIS
engines
100%
energy
100%
heat engines
100%
heat
60%
emission
50%
air
40%
fuels
40%
motion
40%
oxygen
40%
atmospherics
40%
water
30%
motors
30%
oxidizers
30%
united nations
20%
burns
20%
potential energy
20%
rockets
20%
internal combustion engines
20%
hydrogen
20%
wind
10%
india
10%
usa
10%
populations
10%
people
10%
cities
10%
carbon dioxide
10%
sudan
10%
china
10%
applications
10%
electric motors
10%
birth
10%
production
10%
gases
10%
cutting
10%
muscles
10%
alcohols
10%
islands
10%
monaco
10%
san marino
10%
russian federation
10%
indonesia
10%
residences
10%
grinding
10%
greenhouse gases
10%
convection
10%
mixing
10%
pressurization
10%
nitrogen
10%
combustion chambers
10%
fission
10%
energy sources
10%
jets
10%
thermodynamics
10%
fluorine
10%
gravitational fields
10%
pneumatic motors
10%
compressed air
10%
pistons
10%
combustion
10%
crushing
10%
fusion (nuclear)
10%
earth atmosphere
10%
fuel cells
10%
nuclear reactions
10%
combustion products
10%
exhaust gases
10%
rocket engines
10%
hydrogen fuels
10%
myosin
10%
electrochemical engines
10%
water vapor
10%
nuclear energy
10%
hydrocarbons
10%
gasoline
10%
power generation
10%
hydroelectric power
10%
oxidants
10%
electric potential
10%
submarines
10%
Material Science
Hydrogen Fuels
100%
Oxidant
100%
Water Vapor
100%
Carbon Dioxide
100%
Exhaust Gas
100%
Compressed Air
100%
Greenhouse Gas
100%
Engineering
Heat Engine
100%
Energy Engineering
30%
Oxidizer
30%
Internal Combustion Engine
20%
Mechanical Energy
20%
Chemical Energy
20%
Thermal Energy
10%
Combustion Chamber
10%
Available Energy
10%
Electrical Energy
10%
Pure Oxygen
10%
Crankshaft
10%
Pressurization
10%
Grinding (Machining)
10%
Greenhouse Gas
10%
Elastic Energy
10%
Larger Quantity
10%
Reaction Mass
10%
Natural Process
10%
Exhaust Gas
10%
Atmospheric Nitrogen
10%
Hydroelectric Power Generation
10%
Thermodynamic Process
10%
Jet Engine
10%
Common Example
10%
Rocket Engine
10%
Biological System
10%
Geographical Area
10%
Hydrogen Fuel
10%
Nuclear Fission
10%
Electric Motor
10%
Pneumatics
10%
Potential Energy
10%
Electric Potential
10%
Fuel Cell
10%
Combustion Product
10%
Ambient Air
10%
Nuclear Fusion
10%
Energy Source
10%
Nuclear Energy
10%
Compressed Air
10%