law of definite proportions

英 [lɔː ɒv ˈdefɪnət prəˈpɔːʃənz]

美 [lɔː əv ˈdefɪnət prəˈpɔrʃənz]

网络  定比定律

化学

英英释义

noun

• (chemistry) law stating that every pure substance always contains the same elements combined in the same proportions by weight
  Synonym:law of constant proportion