[机] molecular depresion of freezing-point

kè fèn zǐ níng gù diǎn xià jiàng ㄎㄜˋ ㄈㄣˋ ㄗˇ ㄋㄧㄥˊ ㄍㄨˋ ㄉㄧㄢˇ ㄒㄧㄚˋ ㄐㄧㄤˋ