ChatGPT 教英语 Why the Titanic sub is so hard to find – BBC News

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source: https://www.youtube.com/watch?v=tSVbQMYwdXg

 Search teams are racing against time to find a tourist submersible that went missing during a dive to the Titanic's wreck. The search is taking place in a remote area, which makes the operation especially challenging. Communication through water is always very difficult. So once you've lost communication, it's very difficult to locate where it is. One of the big problems with the research is that they don't know whether to look on the surface of the Atlantic or on the seabed. It could be in either place. It's very unlikely it's in between. So the very deep water column to try and find your item, so your footprint of your search will be really big. And then you'll have current effects as well. So if the sub is somewhere in the water column, it can be moving around in a non-predictable manner. The submersible vanished in the ocean, approximately 900 miles from Cape Cod, Massachusetts, where the ocean depth is roughly 13,000 feet. The submarine is going to be neutrally buoyant. So it'll be floating just at the surface, most of it under the water, just a small amount breaking the surface. And it's about the size of a large transit van. So and it's painted white. So trying to see that from the air, particularly if they've lost power, so they won't be able to signal, is going to be a real challenge. They are bolted in. So they're trapped inside. So makes signalling more of a challenge. If it is on the seabed, it won't be so much a case of looking for them, but listening for them because we'll be using sonar. And hopefully the crew will then be making some sort of noise on the hull, which can be detected.

Section 1:

1. submersible - 潜水艇 - The tourist submersible went missing during a dive to the Titanic's wreck.

2. remote - 遥远的 - The search is taking place in a remote area, which makes the operation especially challenging.

3. communication - 通讯 - Communication through water is always very difficult.

4. locate - 定位 - Once you've lost communication, it's very difficult to locate where it is.

5. seabed - 海底 - They don't know whether to look on the surface of the Atlantic or on the seabed.

6. column - 水柱 - It's very deep water column to try and find your item.

7. footprint - 搜索范围 - Your footprint of your search will be really big in very deep water.

8. neutrally buoyant - 中性浮力 - The submarine is going to be neutrally buoyant, floating just at the surface.

9. signal - 发出信号 - They won't be able to signal if they've lost power, which is going to be a real challenge.

10. sonar - 声纳 - If it is on the seabed, we'll be using sonar to detect it.

Section 2:

1. Present Continuous Tense - The search teams are racing against time to find a tourist submersible that went missing.

2. Passive Voice - The search is taking place in a remote area, which makes the operation especially challenging.

3. Conditional Sentences - They don't know whether to look on the surface of the Atlantic or on the seabed. It could be in either place.

Section 3:

搜索团队正在竞赛时间，寻找在“泰坦尼克”沉船的潜水艇。搜救正在偏远地区进行，这使得行动尤其具有挑战性。水下通讯总是非常困难的。一旦失去通讯，很难定位它在哪里。研究中的一个大问题是，他们不知道是否应该在大西洋表面还是海底寻找。可能在两个地方之一。很不可能在中间。试图在非常深的水柱中找到您的物品，因此您的搜索足迹将非常大。然后你也会有当下的影响。因此，如果潜艇在水柱中的某个地方，它可能会以不可预测的方式移动。潜水艇在距离马萨诸塞州土角大约900英里的海洋中消失，在该处的海洋深度大约为13000英尺。潜水艇将是中性浮力。所以它会漂浮在表面，大部分在水下，只有一小部分露在水面上。它的大小约为一辆大型变速箱。如果他们失去动力，因此不能发出信号，那么在空中尝试找到它就会面临真正的挑战。他们被困在里面。因此，发出信号会更具挑战性。如果它是在海底，那么不是寻找，而是依靠听觉来搜索，因为我们将使用声纳。希望机组人员随后会在船壳上制造某种噪音，以便可以检测到它。

0:00:00 Search teams are racing against time to find a tourist submersible that went missing during a dive to the Titanic's wreck. The search is taking place in a remote area, which makes the operation especially challenging.

0:00:13 Communication through water is always very difficult. So once you've lost communication, it's very difficult to locate where it is. One of the big problems with the research is that they don't know whether to look on the surface of the Atlantic or on the seabed. It could be in either place. It's very unlikely it's in between.

0:00:29 So the very deep water column to try and find your item, so your footprint of your search will be really big. And then you'll have current effects as well. So if the sub is somewhere in the water column, it can be moving around in a non-predictable manner.

0:00:42 The submersible vanished in the ocean, approximately 900 miles from Cape Cod, Massachusetts, where the ocean depth is roughly 13,000 feet.

0:00:59 The submarine is going to be neutrally buoyant. So it'll be floating just at the surface, most of it under the water, just a small amount breaking the surface. And it's about the size of a large transit van. So and it's painted white. So trying to see that from the air, particularly if they've lost power, so they won't be able to signal, is going to be a real challenge.

0:01:29 They are bolted in. So they're trapped inside. So makes signalling more of a challenge. If it is on the seabed, it won't be so much a case of looking for them, but listening for them because we'll be using sonar. And hopefully the crew will then be making some sort of noise on the hull, which can be detected.