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H英英释意- 查字库
H
英 [eɪtʃ]
美[etʃ]
- n. 英语字母中的第八个字母，小写为h
- symb. 氢（化学元素）
英英释意
- 1. the constant of proportionality relating the energy of a photon to its frequency; approximately 6.626 x 10\-34 joule-second