目前，氢空气燃料电池和直接甲醇燃料电池还不可能用于电动自行车。

Currently hydrogen-air fuel cells and direct methanol fuel cells are not ready for electric bicycle application.

youdao

目前，氢空气燃料电池和直接甲醇燃料电池还不可能用于电动自行车。

Currently hydrogen-air fuel cells and direct methanol fuel cells are not ready for electric bicycle application.

youdao