exchange operator

en-US/ɪksˈt͡ʃeɪnd͡ʒ ˈɑpəˌɹeɪdɚ/
en-GB/ɛksˈt͡ʃeɪnd͡ʒ ˈɒpəˌɹeɪtə/

カテゴリ：

operator in physics