Findings:

• Mechanical efficiency
• pareto optimal (node_forward)
• pareto optimal
• Vilfredo Pareto
• Pareto's Law
• Pareto efficient
• refrigerator efficiency standards
• Speaker efficiency
• Tips for increasing mail efficiency
• Passing efficiency
• cost-benefit efficiency
• Energy conversion efficiencies
• economic efficiency
• Kaldor-Hicks efficiency
• Efficiency vs. Marketing
• efficiency
• Testament to the efficiency of snipers

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