methane
US /ˈmeθeɪn/
・UK /ˈmi:θeɪn/
B2 中高級
n. (u.)不可數名詞甲烷；沼氣(化學)
Methane is a type of gas that is used as fuel
影片字幕
我們怎麼知道外星行星的空氣是什麼樣的呢？ (How Do We Know What Air is Like on Other Planets?)
- and HD 209458b, a Jupiter-sized exoplanet orbiting the star HD 209458, which is 154 light-years away, has an atmosphere that contains hydrogen, carbon, oxygen, sodium, carbon dioxide, methane, and
的木星大小的系外行星，擁有一層大氣
- that contains hydrogen, carbon, oxygen, sodium, carbon dioxide, methane, and even water vapor.
包含氫、碳、氧、鈉、二氧化碳、甲烷，甚至水蒸氣。
老派又奇特：古菌、細菌與原生生物 - CrashCourse 生物學 #35 (Old & Odd: Archaea, Bacteria & Protists - CrashCourse Biology #35)
- and they emit methane as their waste product: methanogens, methane generators.
而原核生物則沒有細胞核和膜狀胞器
- which is pretty cool and they emit methane as their waste product.
這相當特別，另外在這過程中它們會排出副產物甲烷
2089天內可能發現外星生命！🚀 (We Might Find Alien Life In 2089 Days)
- Organisms can use methane, carbon dioxide, sulfur reactions.
生物可利用甲烷、二氧化碳和硫發生反應。
- Organisms can use methane, carbon dioxide, sulfur reactions.
事實證明，我們也可以為天體做類似的事情。
李奧納多狄卡皮歐 (聯合國和平使者) 出席 2014 氣候高峰會開幕！ (Leonardo DiCaprio (UN Messenger of Peace) at the opening of Climate Summit 2014)
- Droughts are intensifying, our oceans are acidifying with methane plumes rising up from the ocean floor,
乾旱正在加劇，我們的海洋正在酸化，甲烷羽流從海底升起。
- Our oceans are acidifying, with methane plumes rising up from the ocean floor.
乾旱正在加劇，我們的海洋正在酸化，甲烷羽流從海底升起。
飛機可以用氫氣當燃料嗎？！ (Could planes run on hydrogen?)
- There are various ways to do this, but the most common is steam-methane reforming, or SMR.
國際航空運輸協會的會員航空公司已承諾在2050年前達成淨零排放。
- The process heats and pressurizes methane from natural gas to isolate hydrogen atoms.
但由於航空業是最難脫碳的產業之一，這將不會是一項容易的任務。
詹姆斯韋伯望遠鏡迄今為止最令人驚嘆的發現！(4k) (The Most Extraordinary Things James Webb Telescope Has Seen So Far (4k))
- This contrast occurs because methane gas in Saturn's atmosphere absorbs most sunlight at the infrared wavelengths Webb uses, making the planet appear subdued.
出現這種反差的原因是土星大氣中的甲烷氣體吸收了韋伯使用的紅外線波長的大部分陽光，使土星顯得暗淡無光。
- This contrast occurs because methane gas in Saturn's atmosphere absorbs most sunlight at the infrared wavelengths Webb uses, making the planet appear subdued.
出現這種反差的原因是土星大氣中的甲烷氣體吸收了韋伯使用的紅外線波長的大部分陽光，使土星顯得暗淡無光。
外星人究竟長什麼樣？真實長相大揭密！ (What Actual Aliens Might Look Like)
- Like extremophile microbes on Earth, they found ways of breathing methane and using exotic enzymes to harvest sulphur and nitrogen compounds from the air.
只是這裡的水更多，而且熱氣騰騰。
- Deeper down in the planet, like extremophile microbes on Earth, they found ways of breathing methane and using exotic enzymes to harvest sulfur and nitrogen compounds from the air.
在行星更深處，就像地球上的極端微生物一樣，牠們找到了呼吸甲烷並利用外來酵素從空氣中獲取硫和氮化合物的方法。
生態系變遷！ (Ecosystem Change)
- to melt it gives off a methane gas. Methane gas is a really good green house gas. And
融化時，它會釋放出甲烷氣體。甲烷氣體是一種非常好的溫室氣體。而
- to warm the permafrost. Which is going to create more methane gas. And so you know we
加暖永久凍土。這將產生更多的甲烷氣體。所以你知道我們
