In 1984, a particular new solar energy system achieved a sunlight-to-energy efficiency rate of 29.4 per cent.

在1984年，一个特别的技术，新的太阳能能源系统实现了阳光能源效率百分之29.4。

youdao

The results show that the temperature damping rate and energy efficiency rate play very important roles to evaluate the energy efficiency extent of the materials.

结果表明：温度阻尼率与节能效率对相变蓄能建筑材料的节能评价具有重要意义。

youdao

But the analysis also pointed to a possible problem in that China's rate of emissions reduction slowed from 2000 to 2005 before recovering from 2005 on, owing to improvements in energy efficiency.

但分析也指出了一个可能存在的问题，即中国的减排速度在2000年至2005年间有所放缓，直到2005年之后才在能效改善的作用下有所恢复。

youdao

The meeting was part of a new initiative that aims to achieve universal access to modern sources of energy, double the share of renewable energy in the global energy mix and double the rate of improvement in energy efficiency, all by 2030.

FORBES: Sustainable Energy for All: How to Fight Poverty and Climate Change