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来源:雅诚德英语网
He estimates that it will be at least five years before the STAIR cell is commercially available.
他估计最少还要5年才能实现STAIR电池的商业应用。
He estimates that it will be at least five years before the STAIR cell is commercially available.
他估计最少还要5年才能实现STAIR电池的商业应用。