emission

US /ɪˈmɪʃən/

UK /iˈmɪʃn/

B2 中上級
n. (u.)不可算名詞放出
The car's emission is black in color
n. (u.)不可算名詞発光
The bright emission from the supernova was visible for months.
n. (u.)不可算名詞発行
The company announced a new stock emission to raise capital.
n. (u.)不可算名詞放出
Thermionic emission is used in vacuum tubes to generate electrons.

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02:08京都議定書とは? (What is the Kyoto Protocol?)