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Considering the difficulties of the investigation, including evidence collection and judicial authentication in air pollution cases, the document also specified that excessive emissions of chemicals such as sulfur dioxide and nitrogen oxides during a heavy pollution warning would be considered severe environmental pollution.
Construction of the China-Laos railway has adopted Chinese technologies, standards and equipment, and is expected to contribute greatly to Laos' economic development, as well as the Belt and Road Initiative-related construction.

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Construction of the base, called the Xiangshan Marine Technology Harbor, began over two years ago and was finished in early September this year.
来源:资阳报