守恒定律 Traditional 守恆定律 shǒu héng dìng lǜ 🔊 conservation law (physics) + Keep this word Meanings shǒu héng dìng lǜ 守恆定律 conservation law (physics) Its characters 守shǒuto guardHSK 5恒héngpermanent定dìngto fix; to set; to make definiteHSK 4律lǜlaw