n.下水管，下导管

The downcomer in the distillation column helps to transfer liquid from the upper trays to the lower ones.
混合塔中的降液管有助于将上层塔盘的液体传输到下层塔盘。
In a nuclear reactor, the downcomer is an area where coolant flows downward after leaving the core.
在核反应堆中，降液管是冷却剂离开堆芯后向下流动的区域。
Engineers designed an efficient downcomer system to improve the overall heat transfer efficiency of the heat exchanger.
工程师设计了一种高效的降液管系统以提高换热器的整体传热效率。
The downcomer pipes ensure that there's a continuous flow of water in the boiler drum.
降液管确保锅炉汽包内水的连续流动。
Maintenance checks on the downcomers are essential for preventing corrosion and ensuring smooth operation.
对降液管进行维护检查对于防止腐蚀和确保设备平稳运行至关重要。
The function of the downcomer in a chemical process vessel is to transport liquid reagents from one stage to another.
化工过程容器中降液管的作用是从一个阶段向另一个阶段输送液体试剂。
During the oil refining process, the downcomer facilitates the separation of different hydrocarbon fractions.
在炼油过程中，降液管有助于不同碳氢化合物组分的分离。
To enhance the mixing process, we added more downcomers to our industrial-scale bioreactor design.
为了增强混合过程，我们在工业规模生物反应器设计中增加了更多的降液管。
Regular inspection and cleaning of the downcomers in the desalination plant prevent scaling and clogging issues.
对海水淡化厂中降液管进行定期检查和清洁可防止结垢和堵塞问题。
By optimizing the diameter and spacing of the downcomers, engineers were able to achieve a more uniform distribution of fluid across the absorption tower.
通过优化降液管的直径和间距，工程师能够在吸收塔中实现流体更均匀的分布。