不过太阳能技术也有自己需要克服的难点，由于太阳能极易转换为热能和电能，但是将这两种能源达到一定能量密度的储存，并将其应用于交通等应用领域却非常困难。
But solar presents its own challenges, since it's most easily converted into heat or electricity, and we can't store either of these at a high enough density for USES like transportation.
它们应用方面的缺点在于这项技术不能储存象电池一样多的电能。
A drawback to their use is the technology's inability to store as much energy as a battery.
应用推荐