为了得到一些信息，史密斯先生打开了电池供电的收音机。
In order to get some information, Mr. Smith turned on the battery powered radio.
Lifton先生称每块Power Pack的制造成本只要5美元，这只相当于直接燃料电池中铂的价格。
Each Power Pack can be made for around $5, says Mr Lifton, which is comparable to the cost of the platinum alone in a direct-methanol fuel cell.
Balcom先生预测大多数人将在燃料电池车之前用上燃料电池便携设备。
Most people will use a fuel cell in a portable device long before they encounter one in a car, Mr Balcom predicts.
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