Lesson Glossary

按索引浏览词汇表

特殊 | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | 全部

E

Effeciency

The ratio of useful energy output to total energy input, expressed as a percentage.

Electrical Energy

The energy that is used by an appliance at a given setting; determined by multiplying the power rating of an appliance by the length of time it is used.

Electrical Power

The rate at which an appliance uses electrical energy.

EnerGuide Label

A label that gives details about how much energy an appliance uses in one year of normal use.