Combination of gray theory, technology maturity, expert survey, etc. parameters of the model, quantitative analysis of the electric car the size of demand and supply.

结合灰理论、技术成熟度、专家调查法等方式确定模型参数，定量分析我国电动汽车的需求和供给规模。

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According to an expert from the United States Geological Survey, the recent activity is not unusual.

根据一名美国地质局的专家所言，最近的这些地震活动是不寻常的。

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Prof Peter Lynn, an expert on survey methodology from Essex University, says the findings may be unreliable.

BBC: How one question can change the NHS

Jim Childs, a master electrician and the top civilian expert in an Army safety survey, said problems were "everywhere" in Iraq, where 18 U.S. troops have died by electrocution since 2003.

CNN: 'Multiple' failures led to Iraq electrocution, Pentagon says

Commenting on the latest findings, Dr Dominic Hodgson, an Antarctic lakes expert from the British Antarctic Survey (Bas) in Cambridge, said the research raised the possibility that there was life on Mars.

BBC: Antarctic lake's secret water