填空题

If the storage problem is _ and ___, a network of hydrogen stations and the transportation infrastructure will have to develop around it.

【参考答案】

solved；standardized

<上一题目录下一题>

热门试题

填空题

So far, there seems to be no solution in sight as to how the hydrogen can be stored.

填空题

We must derive hydrogen from renewable sources with a view to a pure hydrogen economy.

If the storage problem is _________ and ___________, a network of hydrogen stations and the transportation infrastructure will have to develop around it.