Name: 壓力會讓深海結冰嗎？ (Does Pressure Keep the Deep Ocean From Freezing?)
Uploaded: 2025-06-18T10:45:53.000Z
Duration: 1 min 41 s
Description: 【看影片學英語】數萬部 YouTube 影片，搭配英漢字典即點即查，輕鬆掌握單字發音與用法，長久累積看電影不必再看字幕。學這些英文用法：攝氏度,結冰,壓力,海水,融化,海洋,深海,溫度,深入,淡水,液態,大氣,冰塊,原因,深處,重量,表面,複雜,回答,產生,機會,事實

Does pressure keep the deep ocean from freezing?

情態副詞

But you were probably hoping for a more in-depth answer.

但你可能希望得到更深入的回答。

So, let's take a deep dive to the bottom of the Mariana Trench.

那麼，讓我們深入馬裡亞納海溝的底部。

Down here, there's 11 kilometers of water pressing down on you from above, and the weight of all that water generates around a thousand times atmospheric pressure.

在這下面，有 11 千米的水從上面壓下來，所有這些水的重量產生的壓力大約是大氣壓力的一千倍。

Like, you only need 500 times atmospheric pressure to melt ice down to -4 degrees Celsius.

比如，你只需要 500 倍大氣壓就能把冰融化到零下 4 攝氏度。

And if you have a thousand times atmospheric pressure, like at the bottom of the Mariana Trench, then you'll melt ice down to around -9 Celsius.

而如果你的氣壓是大氣壓的一千倍，比如在馬裡亞納海溝底部，那麼你就會把冰融化到零下9攝氏度左右。

For salty seawater, everything more or less gets shifted colder.

對於含鹽的海水來說，一切都會或多或少地變冷。

On the ocean's surface, salt water doesn't freeze until around 2 degrees Celsius below zero.

在海洋表面，海水要到零下 2 攝氏度左右才會結冰。

At 500 times atmospheric pressure, salt water doesn't freeze until around 6 degrees Celsius below zero, and at the bottom of the Mariana Trench, salt water wouldn't freeze until around 11 degrees below zero.

在 500 倍大氣壓下，鹽水要到零下 6 攝氏度左右才會結冰，而在馬裡亞納海溝底部，鹽水要到零下 11 攝氏度左右才會結冰。

But for various reasons related to circulation and salinity and convection, and the fact salt water freezes into fresh water ice.

但由於與環流、鹽度和對流有關的各種原因，以及鹽水凍結成淡水冰的事實。

For complicated reasons, deep ocean water is often around 0 to 4 degrees Celsius, and doesn't really get much colder than two below zero.

由於複雜的原因，深海海水的溫度通常在 0 至 4 攝氏度左右，真正的低溫不會超過零下兩度。

These are temperatures at which the water would stay liquid from salt alone.

在這些溫度下，僅靠鹽就能使水保持液態。

Even without the additional pressure, so while pressure could in principle keep the ocean from freezing, it doesn't really get a chance.

即使沒有額外的壓力，雖然原則上壓力可以使海洋不結冰，但它並沒有真正的機會。