上游

这种前沿探索为进一步深化现代上游研究提供了宝贵的第一手资料。

zhè zhǒng qián yán tàn suǒ wèi jìn yí bù shēn huà xiàn dài shàng yóu yán jiū tí gōng le bǎo guì de dì yī shǒu zī liào.

This pioneering discovery provides valuable first-hand material for further research on upstream modernity.

位于大江大河上游生态水源涵养区的各省份，坚决扛起保护水质源头清洁的历史政治责任。

wèi yú dà jiāng dà hé shàng yóu shēng tài shuǐ yuán hán yǎng qū de gè shěng fèn, jiān jué káng qǐ bǎo hù shuǐ zhì yuán tóu qīng jié de lì shǐ zhèng zhì zé rèn.

The provinces located in the ecological water conservation areas in the upper reaches of major rivers have resolutely shouldered the historical and political responsibility of protecting the source of clean water quality.