慣性系 Save Sign in to save words Simplified: 惯性系 guànxìngxì ㄍㄨㄢˋ ㄒㄧㄥˋ ㄒㄧˋ inertial system inertial frame (mechanics) Character by character 慣(guàn)accustomed to 性(xìng)nature 系(xì)connect A Chinese word or character, or English Search Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0