这种焦虑在美国能源部尤其严重，能源部对用于生产风力发电机涡轮、电动汽车、太阳能电池和节能灯的特殊材料的缺少感到特别揪心。
In particular, the Department of Energy frets about certain metals used in manufacturing wind turbines, electric vehicles, solar cells and energy-efficient lighting.
这种焦虑在美国能源部尤其严重，能源部对用于生产风力发电机涡轮、电动汽车、太阳能电池和节能灯的特殊材料的缺少感到特别揪心。
In particular, the Department of Energy frets about certain metals used in manufacturing wind turbines, electric vehicles, solar cells and energy-efficient lighting.
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