Investors are prowling for a breakthrough technology-solid state batteries, ammonia fuel cells-that will make energy as cheap and easy to store as gravel.
投资者开始瞄准突破性技术：固态电池和氨燃料电池。利用这些技术，能源就能变得像砂砾一样，不仅廉价，而且易于储存。
That means that barring a breakthrough technology in electricity storage, wind and solar are likely to contribute only small - that is, single-digit - percentages of our overall energy needs.
那也就意味着除非有电力储存上的技术突破，风能和太阳能很可能在我们总的能源需求中只能做出占百分比个位数的少量贡献。
That means that barring a breakthrough technology in electricity storage, wind and solar are likely to contribute only small - that is, single-digit - percentages of our overall energy needs.
那也就意味着除非有电力储存上的技术突破，风能和太阳能很可能在我们总的能源需求中只能做出占百分比个位数的少量贡献。
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