例如,阿联酋已经批准了一个雄心勃勃的目标,即到2021年实现24%的主要能源消耗提取自可再生能源。
Renewables account for only a small share of global primary energy consumption, which is still dominated by fossil fuels'u201430% each for coal and oil, 25% for natural gas.可再生能源只占全球主要能源消耗的一小部分,化石能源仍然占主导地位——煤炭和石油各占30%,天然气占25%。
National primary energy production reached 1.34 billion tons of standard coal.一级能源生产达到13.4亿吨标准煤。
Because eating frequent meals prevents dips in blood glucose, the primary energy source for the brain.因为多餐制可以预防血糖下降,血糖是大脑原始能量的提供者。
Lactic acid is a by-product of the body's metabolization of glucose, which is the primary energy source for running.乳酸是身体葡萄糖代谢的副产品,而葡萄糖是跑步的主要能量来源。
Most of the rest of the investment will have to go to exploring and developing new sources of oil, which will remain the world's primary energy source for decades.其余的大部分资金将用于新油田的勘探和开发,未来几十年中石油仍将是世界的基础能源。