惯性系 Traditional 慣性系 guàn xìng xì 🔊 inertial system + Keep this word Meanings guàn xìng xì 慣性系 inertial systeminertial frame (mechanics) Its characters 惯guànaccustomed toHSK 7–9性xìngnatureHSK 4系xìto connectHSK 5