西方国家和繁荣稳定的历代中国朝代之间的贸易促使双方互相引入了新的形式和不同的技术。
Trade between the West and the settled and prosperous Chinese dynasties introduced new forms and different technologies.
在大约一千年前，鸦片可能由阿拉伯商人引入到中国和印度，并很快因其药物特性而引起广泛地重视。
It was probably introduced to both China and India by Arab traders about a thousand years ago, and soon came to be widely valued for its medicinal properties.
在低碳情景下，中国将优化其能源结构，并引入高效低碳技术。
In the low-carbon scenario, China would optimise its energy structure and introduce effective low-carbon technologies.
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