With regard to the items that are already specified in the national standards for discharge of water pollutants,they may establish more stringent local standards than the national standards.是什么意思_With regard to the items that are already specified in the national standards for discharge of water pollutants,they may establish more stringent local standards than the national standards.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句