Complex sentence: As a conquest dynasty, it strengthened the autocratic rule to crackdown Anti-Qing sentiment, the Haijin ("sea ban") and the ideological control as represented by the literary inquisition caused technological stagnation.
Split into simpler sentences: As a conquest dynasty, it strengthened the autocratic rule to crackdown Anti-Qing sentiment. The Haijin ("sea ban") and the ideological control as represented by the literary inquisition caused technological stagnation.