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Ligase
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Venus Express
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Mariner 10
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Pathological
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Authorisation certificate
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Optical isomers
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MTI
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Crystal lattice
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Scalp
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RIR
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Proboscis
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Non repudiation
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Descriptor
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Propagule
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Exhalation
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Genetic polymorphism
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Telematics
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General relativity
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Google Earth
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Salivary gland
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Omega-6/omega-3 ratio
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One-time pad
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BRA (French avalanche risk bulletin)
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Internal ear
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Translucent
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Rheology
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Placer
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Karyotype
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Miocene
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Cambrian
Hydrogen engine
A hydrogen engine is a device that transforms the chemical energy contained in dihydrogen (H2) into mechanical energy.
There are three types of hydrogen engines:
- A reaction engine;
- An internal combustion engine;
- An electric engine powered by a fuel cell.
Hydrogen engines are used in astronautics, aeronautics and the car industry.
Engine of a hybrid hydrogen/petrol vehicle. © Claus Ableiter, Wikimedia CC by-sa 3.0
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