at hydrogen
在氢这方面
双语对照
The proposal for a regulation of the european parliament and of the council aims atincluding hydrogen powered vehicles in the european community whole vehicletype-approval ( wvta) system.
欧洲议会及理事会法规建议案目的为氢动力车辆包括在欧盟整车型式批准（wvta）系统中.