漕运

nóng yè shēng chǎn cáo yùn tiáo jiàn yōu yuè de jī běn jīng jì qū shì fēng jiàn nóng yè zhōng guó zhōng yāng jí quán guó jiā jī qì zuì yǒu lì de zhī chēng

农业生产、漕运条件优越的基本经济区是封建农业中国中央集权国家机器最有力的支撑。

A basic economic region with superior agricultural production and water carriage conditions was the main support of a centralized feudal China dynasty.