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I
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• The five d orbitals break up into two sets.
• The gas has to dissociate into single atoms.
• A χ-meson decays (or breaks down) into several charged particles.
• These silicone fluids do not decompose into gums or tars.
• Glucose is broken down into carbon dioxide and water with the release of energy.
• The glucose-phosphate compound breaks down to pyruvic and acetic acids.
• The crystal broke into three pieces.
• The hydrogen molecules are dissociated (or degraded) to hydrogen atoms in the arc.
• The substance of that star disintegrated and spread out into space.
II
• These graphs fall into two groups.
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Русско-английский научно-технический словарь
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