转动惯量 zhuǎndòngguànliàng moment of inertia Origin Definitions Defs Strokes Stroke Words Sentences Sents 转动 轉動 zhuàndòng verb to rotate to revolve or rotate around an axis or center point; to move in a circle; to gyrate惯量 慣量 guànliàng inertia the quantity of an object's inertia in mechanics, proportional to its mass