emission

排出物、放射

物から外へ出る気体、光、熱、音など。

やさしい英語で： Gas, light, heat, or sound that comes out of something.

• The factory produces harmful emissions.
• We need to reduce carbon emissions.
• Scientists measured the light emission from the device.

使い方： emissions from something (Emissions from traffic pollute the air.)

類義語： issuance

よく使う表現： carbon emission, exhaust emission, emission levels

放出、放射

気体、光、熱、音などを周囲へ出すこと。

やさしい英語で： The act of sending gas, light, heat, or sound out into the surroundings.

• The emission of gas stopped.
• This process involves the emission of light.
• They developed a method to prevent the emission of harmful gases.

使い方： emission of something (The reaction causes the emission of heat.)

類義語： release

反対語： absorption

よく使う表現： emission of light, emission of heat, emission process