This contribution is mainly due to technological progress.
这一贡献主要来自技术进步。
That's the explanation of the difference between regional contribution rates of technological advance.
这是造成区域技术进步贡献率差异的原因。
That's the explanation of the difference between regional contribution rates of technological advance.
这是造成区域技术进步贡献率差异的原因。
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