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lubrication system » lubrication systems (Expand search), purification system (Expand search), medication system (Expand search)
decrease processes » disease processes (Expand search), decay processes (Expand search), increase process (Expand search)
decrease decrease » decrease release (Expand search), disease decreases (Expand search), decreases disease (Expand search)
system decrease » system decreases (Expand search), system increase (Expand search), symptom decrease (Expand search)
decrease after » increase after (Expand search), disease after (Expand search)
decrease or » decrease of (Expand search), decrease on (Expand search), decrease toc (Expand search)
or decrease » not decrease (Expand search), to decrease (Expand search), _ decrease (Expand search)
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“...Energy saving, improving system efficiency and using alternative energy sources are common...”
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Doctoral thesis