微扰展开 Traditional 微擾展開 wēi rǎo zhǎn kāi 🔊 perturbative expansion (physics) + Keep this word Meanings wēi rǎo zhǎn kāi 微擾展開 perturbative expansion (physics) Its characters 微wēitiny扰rǎoto disturb展zhǎnto spread out开kāito open; to turn on; to driveHSK 1