結果 : what is energy efficiency definition
1:10

What Is Energy Efficiency?

International Energy Agency
2,643 回視聴 - 1 年前
1:04

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3:14

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26:45

What is Energy Efficiency? Need of Energy Efficiency | Examples of Energy Efficiency | Energy Audit

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5:08

GCSE Physics - Efficiency #8

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33:13

Module 2 - Ship Energy Efficiency Regulations and Related Guidelines

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1:34

Energy Efficiency in 90 seconds

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5:43

What Are Sources of Energy? | Energy Explained | The Dr Binocs Show | Peekaboo Kidz

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1:35

The importance of energy efficiency

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0:52

How to Lower Energy Bills After the Price Cap Increase #energyprices #EnergyEfficiency #LowerBills

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3:15

Energy Efficiency Education for Kids

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1:53

Why Energy Efficiency?

Efficiency Nova Scotia
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3:03

Energy Conservation | National Geographic

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171,093 回視聴 - 15 年前
1:33

Energy Conservation vs. Energy Efficiency

IGS Energy
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4:22

Episode 2: What is Energy Efficiency? (English)

Minnesota Department of Commerce
2,715 回視聴 - 2 年前
1:31

Efficiency Formula | Physics Animation

EarthPen
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1:04

DOE Philippines EnerhiyangAtin - What is Energy Efficiency?

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8:33

Energy Efficiency | Grade 9 Science

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Energy Efficiency At Home

Sustainability Victoria
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Energy efficiency in shipping - why it matters!

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