ECC指标克服了传统初次能耗折算方法不能反映不同初次能源品位差异的不足，该指标能够在反映能源品位的基础上对能源转换系统的效率进行评价。

ECC has overcome the deficiency of Prime Energy method. This method can evaluate the various energy conversion systems based on reflecting the grade of different primary energy.

这是因为电动车的能源转换率高，没有噪音和尾气显然比其他的交通工具更合理，更环保。

Because e-bike has high-energy conversion rate, people can′t be hear the noise and exhaust, it is more reasonable and more environmental protection than other transports.

交换器是传感器的机制或元素，它将测量到的能源转换成另一种形式的能源。

A transducer is the mechanism, or element, of the sensor that transforms the energy associated with what is being measured into another form of energy.

让人惊讶的能源转换和发电厂的建设，让地球上所有其他能源领域内的事情都变成了小儿科。

The incredible build of transmission and power plants dwarfs everything else on earth in the energy biz.

马富才指出，为改善能源结构和人类生活环境，许多国家都经历了煤炭—石油—天然气的优质能源转换过程。

Ma said in order to improve energy structure and human living environment many countries have undergone the process of energy transfer from coal to oil and then to natural gas.