Working conditions in these caissons were dismal and dangerous.

这些沉箱中的工作条件恶劣且危险。

But with extra troops required to do it right the caissons are not being used to limit the number of people interacting.

但由于需要额外的部队来执行任务，为了减少人们接触的次数，目前不再使用沉箱了。

This work was done in underwater chambers called " caissons."

这项工作是在称为“沉箱” 的水下舱室中完成的。

They tried to cajole a callow boy to carry the caisson.

他们试图哄骗一名没有经验的男孩来扛弹药箱。

Barr's thorough technological history discusses not only how caissons work, but also the dangers involved.

Barr 详尽的技术史不仅讨论了沉箱的工作原理，还讨论了所涉及的危险。

Anchors and winches are used  to position the caissons, which are ballasted with  water to keep them stable.

锚和绞盘用于定位沉箱，沉箱用水压载以保持稳定。

These caissons were used to build the bridge under the water.

这些沉箱用于在水下建造桥梁。

They placed layers of stone on top of the caisson as they dug.

他们边挖边在沉箱上面放上一层层石头。

As it turns out, working in these caissons was very dangerous.

事实证明，在这些沉箱中工作是非常危险的。

First of all, let's start with those caissons,   which will be prefabricated on land.

首先，让我们从那些沉箱开始，这些沉箱将在陆地上预制。

It'll be made from concrete caissons filled  with sand.

它将由充满沙子的混凝土沉箱制成。

Building on the rocky river bed involved the use of a largely untested technology: pneumatic caissons.

在多岩石的河床上建造建筑涉及使用一种基本上未经检验的技术：气动沉箱。

OCEANIX, which is constructing an  entire floating city in South Korea, is placing everything on platforms  made from concrete caissons.

OCEANIX 正在韩国建造一座完整的漂浮城市，它把所有东西都放在由混凝土沉箱制成的平台上。

This is probably why hundreds of people who worked on the Brooklyn Bridge eventually became sick with caisson disease.

这可能就是数百名在布鲁克林大桥上工作的人最终患上沉箱病的原因。

At Chioggia and Malamocco different methods  were used to launch the caissons into the water.

在 Chioggia 和 Malamocco，使用了不同的方法将沉箱放入水中。

There are also two shoulder  caissons at all four barriers, which connect the housings to the mainland.

在所有四个障碍处还有两个肩部沉箱，将房屋连接到大陆。

They sit in huge concrete  caissons that were prefabricated on land then dropped into trenches on the seabed.

他们坐在巨大的混凝土沉箱中，这些沉箱是在陆地上预制的，然后投入海床上的战壕中。

A high concrete wall will then be built on top of the caissons to protect the island  from strong waves, wind and flooding.

然后将在沉箱顶部建造一堵高高的混凝土墙，以保护该岛免受巨浪、风和洪水的侵袭。

Barges armed with huge cranes were  then used to pick up the caissons and manoeuvre them to their resting place.

配备巨型起重机的驳船随后被用来搬运沉箱并将它们运到停放处。

He describes the use of caissons, which enable workers to dig down for considerable distances, often below the water table, until they reach bedrock.

他描述了沉箱的使用， 它使工人能够向下挖掘相当长的距离，通常在地下水位以下， 直到他们到达基岩。