冷池 meaning in English

cold-air drop

Is a cold pool necessary for the maintenance of a squall line produced by a cold front aloft
冷空气堆（冷池）对于高空冷锋产生的的雹线维持是否是必要的？
The paper introduces a measurement method of two - phase flow parameters based on digital image processing techniques through processing image of an experiment study of the transient drag property on the high - temperature particles falling into the cold liquid pool
文章以处理高温颗粒沉降冷池实验图像为例，介绍基于数字图像识别技术的气液两相流参数检测方法。