作为当今氢燃料电池的一大瓶颈，不仅是燃机的普及，更是其高昂的成本。

One of the biggest issues with hydrogen fuel cells, aside from the lack of fueling infrastructure, is the high cost of the technology.

youdao

作为当今氢燃料电池的一大瓶颈，不仅是燃机的普及，更是其高昂的成本。

One of the biggest issues with hydrogen fuel cells, aside from the lack of fueling infrastructure, is the high cost of the technology.

youdao