The cofferdam can be controlled to sink or float by adjusting the ballast water in the cofferdam.

通过调节潜水箱内压载水，可以控制潜水箱下沉或上浮。

Workers are reinforcing the cofferdam.

工人正在加固围堰。

People who often work in cofferdam can get diving diseases.

经常在沉箱中工作的人可能会得潜水病。

The cofferdam is safe and stable.

目前围堰是稳定安全的。

Open Channel and Longitudinal Cofferdam Project Attributed to CGGC.

承建的导流明渠和纵向围堰工程。

A design and construction method to a new-typed cofferdam is introduced.

介绍一种新型围堰的设计施工方法。

The dam builders fail to consider the downstream effects of cofferdam failure.

水坝工程师没有考虑围堰崩溃对下游造成的影响。

A longitudinal concrete cofferdam was demolished by way of underwater controlled blasting.

利用水下控制爆破方法拆除了大源渡河中的混凝土纵向围堰。